If f (1) = 160 and f (n + 1) = - 2f (n), what is f (4) ?

The exponential function y = 2 (3) x grows by a factor of 9 between x = 1 and x = 3. What factor does it grow by between x = 5 and x = 7?

What is 21⁄4 plus 4 3⁄10? A. 611⁄20 B. 613⁄20 C. 61⁄4 D. 61⁄2

A ratio that is equivalent to 60:125

Write 10/12 in simple form

What are the coefficients and constants in 4-4y+y-3

Sue wakes up at 7:45 A. M. and jogs for 40 minutes. She then spends 45 minutes dressing for school before she catches the bus. At what time does Sue get on the bus?

Which equation is equivalent to 4x+3 = 64?

How would you write the equation with a slope of 2/3 and a y-intercept if - 3

On Saturday, a local hamburger shop sold a combined total of 520 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Saturday

A bag contains 10 red marbles, 15 yellow marbles and 5 green marbles. What is the probability of drawing a red or green marble from the bag?