Sam evaluated the expression x² y for x = 7 and y = 9. He got a value of 49. Which of the following statements is correct?

Sam's answer is correct.

Sam forgot to multiply.

Sam squared wrong.

N-2 = (10n+4) / 2 Solve for n. No multiple choice.

What is an expression that equals 1 using the numbers 6, 3, and 5 only once

What is 5.42 times 305 estimate to?

F (x) = 3x^3-x^2-5x-10

Mckenzie runs at a rate of 180 meters per minute. how far does she run in 5 minutes

3 divided by 57 answer

What is 20x+5y=15 for y?

The next term of the sequence is 48. (2, 4, 8, 16, 32, ...)

A motorboat left a harbor and traveled to an island at an average rate of 10 knots. The average speed on the return trip was 10 knots. If the total trip took 4.0 hours, how far is the harbor from the island?

Which polynomial is in standard form? 1+2x-8^2+6x^3 2x^2+6x^3-9x+12 6x^3+5x-3x^2+2 2x^3+4x^2-7x+5