375-742=x
x= -367
The radius of a circle is 28cm. What is the circle's diameter? D= 2r or r = 1/2D
56cm
$200-$34.8=y
$165.2
The radius of a circle is 12in. What is the area of the circle? A= (pi)r2
pi(r)2 = 452.16inches squared
-83(-59)=z
z= 4897
The radius of a circle is 16cm. What is the circle's circumference?
(2(pi)r = circumference)
2(pi)r = 100.48 cm
-49+102(2)=t
t= 155
How much simple interest would be accrued if a person put $4500 into an annuity for 10 years at 6% interest?
I= $2700
The diameter of a circle is 14ft. What is the circle's area? A = (pi)r 2
153.86 ft squared
−10(1+ 4+3) − 5 = x
x= -85
How long do I have to invest $1000 in an account at 5% interest to receive $500 in simple interest?
I = PRT
t = 10 years
What is the formula for Circumference?
C= 2(pi)r