Substitute 7 for x and evaluate the expression below. 9x - 2x

Write and solve an equation to find the number. The sum of - 5 and a number is - 15. a. -5 + n = - 15; - 10 c. n + 5 = - 15; - 20 b. 5 - n = - 15; 20 d. 5n = - 15; - 3

The frequency of an AM radio is 1.4 x 106 hertz (cycles per second). Approximately, how many cycles are completed in a minute?

In a scale drawing, the height of a tree is 3 inches. In real life, the height of the tree is 6 feet. What is the scale factor? A. 1/24 B. 24 C. 3 in : 6 ft D. 6 in : 3 ft

What similarities do all rules for linear functions share?

9x-2y=-21 2x+3y=16 Substitution

10^m*10^n for m=2 and n=4

Convert 5 feet to inches. There are 12 inches in 1 foot. A) 15 inches B) 20 inches C) 50 inches D) 60 inches

How do u estimate 243*6

When solving fractions do u eliminate fractions?

What is the area of a rectangle if the length is 5 inches and the width is 2/5