Want is the solution?

21 = 42 - 3r

A. r = - 8

B. r = - 7

C. r = 7

D. r = 8

At 15 mins you burn with a uv rating of 6 what would it be at uv 10

What is 3 copies of 4.65

Matthew launches a ball at 34 meters/sec from a 28 meter tall platform. The function of the ball's height (h) at time (t) seconds after launch is h (t) = - 2t^2+34t+28. Determine how long it will take for the ball to be at its original height.

Given that 2x + 7 = 27 and 3x + 1 = 28, does 2x + 7 = 3x + 1

The sum of John's age and five times Mary's age is 89. The sum of Mary's age and twice, John's age is 52. Write and solve a system of equations to find both of their ages?

An antelope Can run at a speed at 61 mph. What is the speed in yards per second? Round to the nearest hundredth.

Which of the following would be the most effective means of controlling current water pollution of United States surface waters?

How do you write 151% as a fraction or mixed number in simplest form?

Sam and his two brothers want to fly to Boston. About how much will Sam and his brothers save buying the less expensive fare? Skies the limit airline $319 In the clouds airlines $405

The sum of two numbers is 65 and the difference is 13. what are the numbers?