3. The area of a circle in square units is pi(9x^2 + 42x + 49). Which expression represents
the circumference of the circle in units?
A. pi(3x + 7)
B. 2pi(3x + 7)
C. 2pi(3x + 7)?
D 6x + 14

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days