Algebra
Solve for x: 3x+5=14
x = 3
Find the perimeter of a rectangle with a length of 20 inches and a width of 15 inches.
70 inches
What is 20% of 80?
16
If Mark earns $15 per hour and works 20 hours in a week, how much does he earn in a week?
$300
Calculate the sum of -5 and 8.
3
Evaluate the expression when x=2: 4x2 − 3x + 5
15
Calculate the area of a triangle with a base of 6 inches and a height of 9 inches.
27 square inches
Alex bought a smartphone for $300 and later sold it at a 10% profit. What is the selling price?
$30
Emily receives a monthly allowance of $50. If she saves 30% of her allowance each month, how much does she save?
$15
If the temperature is -3 degrees Celsius and it decreases by 7 degrees, what is the new temperature?
-10 degrees C
Simplify the expression: 2(3x−7)−4x
2x -14
Determine the missing angle in a triangle where the other two angles measure 30 degrees and 60 degrees.
90 degrees
Your dinner bill is 65 dollars and you want to tip the waiter 20%. What is the total cost of the meal?
$78
Jason has a part-time job and earns $200 every two weeks. If he spends $50 on entertainment each week, how much money does he save in a month?
$200
Evaluate the expression: (−2)3 + 5
-3
Solve for y: 2y + 8 = 5y − 4
y = 4
Find the volume of a rectangular prism with a length of 4 inches, width of 3 inches, and height 7 inches.
84 cubic inches
Samantha scored 85% on her math test. If there are 20 questions on the test, how many did she answer correctly?
17 questions
Emma has a savings account with an interest rate of 5% per year. If she deposits $500 into the account, how much interest will she earn in a year?
$25
Find the product of 3/4 and −2/3
-1/2
Factor the expression: x2−9.
(x + 3)(x - 3)
In a right-angled triangle, the legs measure 5 inches and 12 inches. Find the length of the hypotenuse.
13 inches
You buy an Xbox Series X for 450 dollars. There is a 15% discount. What is the cost of the Xbox?
$382.50
If Rachel borrows $1200 from her friend and agrees to pay back with a 15% interest, how much will she repay in total?
$1380
Add 1/2 to -3
-5/2