Which will result in a difference of squares?

(-7x + 4) (-7x + 4)

(-7x + 4) (4 - 7x)

(-7x + 4) (-7x - 4)

(-7x + 4) (7x - 4)

a plumber charges an initial amount to make a house call plus an hourly rate for the time he is working. A 1 hour job cots $90 and a 3 hour job costs $210. What is the initial amount and the hourly rate that the plumber charges.

John had 2/3 of his homework completed Sarah had 5/10 Alex 7 / 8 Michelle 1/2 who completed the most of the homework assignment

When writing a repeating decimal as a fraction, why does the fraction always have only 9s

A park ranger standing in a 146-foot lookout tower sees the beginning of a forest fire. she measures the angle of depression from the tower to the fire to be 12 degrees.

Rahul simplified an expression. His work is shown below. Step 1 Step 2 Step 3 Step 4 28.5 Where did Rahul make his first mistake? step 1 step 2 step 3 step 4

Jose walked 5 miles in 2 hours. What was his walking rate in miles per hour?

Find the volume of a sphere with radius 9 yd. A. 3,829.7 yd3 B. 3,052.1 yd3 C. 381.5 yd3 D. 339.1 yd3

Optimize the equation P = 4x + 3y using the constraints x > 0, x < 4, y < 5. What is the maximum? a. 13 b. 15 c. - 3 d. 31

Find a pair of fractions that has each product. A) 6. B) 1 / 2

a recipe that serves 4 calls for 1 3/4 cups of tomato sauce. if jerry makes 2 1/2 time that amount, how many cups of tomato sauce will he need?