Which expression is equivalent to:

5x2 - 10x - 7 + 5x2 + 8?

Jar a contains 2 white and 4 red balls, where jar b contains 1 white and 1 red ball. a ball is randomly chosen from jar a and put into jar b, and a ball is then randomly selected from jar b.

A train travels 150 miles in 3 hours. At this same rate, how many miles will it travel in 8 hours? 500 miles 350 miles 400 miles 450 miles

You have 7/8 cup of sour cream to make tacos. If each taco requires 1/16 cup of sour cream, how many tacos can you make?

On the line, between which two whole numbers √136 be located

a bullet fired from a gun traveled 3,600 m south in 6.0 seconds. What was its velocity in (a) m/sec and (b) km/hour?

Are the irrational numbers closed under multiplication?

You are spending $144 for new sweaters, T-shirts, and pants. Sweaters (s) cost $28, T-shirts (t) cost $14, and pants (p) cost $23, each. Which equation represents this situation? A. 28s + 14t + 23p = 144 B. 14s + 28t + 23p = 144 C.

What does 28 tens equal to

If the width is 3 less than the length of a rectangle, and it's perimeter is 98 inches, what are the dimensions of the rectangle?

What is 92 percent as a decimal and fraction, 21 percent as a decimal or fraction, 38 percent as a decimal or fraction, and 5 percent as a decimal or fraction?