Tax/Discount/Interest/ Commission
A shirt costs $20 and is on sale for 25% off. What is the discount?
5%
In the equation y=3x, what is the output when x=5?
y=15
Write the ratio of 12 pencils to 18 pencils in simplest form.
2:3
What is 7 + (-3)?
4
How old did Mrs. Davis turn on Saturday?
32
A video game costs $45. Sales tax is 8%. How much tax will you pay?
$3.60
Is the relation {(2,4),(3,6),(4,8)} a function? Why or why not?
Yes - none of the x values repeat.
30% of 80 students are absent. How many students are absent?
24 students
Simplify 3/4 + 1/8.
7/8
How many bones are in the human body?
206
A realtor earns 6% commission on a house that sold for $150,000. How much is the commission?
$9,000
A graph passes through (0,0) and (2,10). What is the constant of proportionality?
k=5
Solve. 3/5 = x/25
x=15
Evaluate -6 - (-9)
3
What does "www" stand for in a website address?
A laptop costs $800. It is marked down by 15%. What is the sale price?
$680
The equation is y=2x+1. What is the y-intercept?
y intercept = 1
A scale drawing has a ratio of 1 in : 4 ft. If a wall is 6 inches on the drawing, how long is the actual wall?
24 feet
Multiply. -2/3 x 2/5
-2/5
What is the largest land animal?
Elephant
You deposit $500 in a savings account earning 4% simple interest per year. How much interest will you earn after 3 years?
$60
A taxi ride costs $3 plus $2 per mile. Write an equation for the cost (y) of a ride that is x miles.
y=2x+3
A survey shows that 18 out of 45 people prefer pizza. What percent is this?
40%
A submarine is 250 feet below sea level. It descends another 125 feet, then rises 200 feet. What is its final depth?
-175 feet
What year was the first iPhone released?
2007