What number does x represent in the equation below? 3x + 1 = 10

3 x + 1 = 10

group of answer choices

a. 1

b. 3

c. 9

d. 10

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?