Derek tried to solve an equation step by step.

Eque

8d - 72

8d

72

Step 1

250 12

8

8

d8 Step 2

Sial Sum

Find Derek's mistake

Choose 1 answer

A

Step 1

B

Step 2

C

He Did not make a mistake

How many 2 inch cubes are needed to completely fill a cubic box of edges 8 inches

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To calculate 31^2, Emily mentally figures the value 30^2 and adds 61. Emily subtracts a number from 30^2 to calculate 29^2. What number does she subtract?

Last week at Best Bargin, 75% of the computers sold were laptops. If 340 computers were sold last week, how many were laptops?

How do you Find percent markup

Write an algebraic expression that represents the quotient of a number and 20

Approximate the value of 12-2pie

Jeff is buying apples and bananas from the farmer's market. He know that to find his total cost he will use the expression 1.25a + 0.50b, where a stands for the number of apples he bought and b stands for the number of bananas he bought.

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