Which of these is a trinomial?

A. 5xy

B. X + 2y^2 - 7

C. 2x - 7

D. 2x^3 - 7y^3

What is the plane's change in altitude to the nearest foot? sin (5) = x/20 mi I'm unsure what the answer is!

Tommy stands on a diving board that is 4 fee above the pools surface. He dives and touches the bottom of the pool, which is 12 feet below the pools surface. What is the total length of Tommy's dive?

This is simple interest: $640, 3%, 2 years anyone knows how to explain?

George had $235 in his checking account he withdrew $20 each day on Monday Tuesday and Wednesday George got paid on Friday and deposited $130 into his checking account then on Saturday he wrote two checks one for a $167 and one for $212 what was the

Each car in a rental fleet is either red or white, and there are 75 cars total. There are three more white than twice the number of red cars. How many cars are white?

Are 8 (w+6) and 5+8w+1 equivalent expressions? Use substitution to check your answer.

How i can find 7 times 754 using two different methods

12. What is the length of the hypotenuse of the right triangle ABC in the figure? A. 7.2 B. 6.2 C. 11.0 D. 5.8

What is the probability of getting 3 tails when tossing a coin 4 times?

2. The length of the side of a square is represented by the expression 2a²b. Which term represents the area of this square? A. 8a3b B. 4a3b C. 4a4b2 D. 2a6b2