Expressions/Equations Review IAB

Find the value of Q so that the expression 5(2 + m) is equivalent to 5(m + q).

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Identify all expressions that simplify to 4y + 5y + 7 - 3y - 4.

• 6y + 3

• 5y + 3

• 9y - 3y + 3

• 9y - 3y + 7

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Identify all expressions that are equivalent to 8a - 32.

• 2(3a - 16)

• 4(2a - 8)

• 2(4a - 16)

• 8(a - 32)

Identify all expressions that simplify to 4x + (2x + 5) + x.

• 7x + 5

• 4x + 5 + 2x

• 6x + 5 + x

• 7x + 6

Jessica had a total of $150 to spend for her art class supplies. She has already spent $87 on fancy paper and shading pencils. She wants to buy some art sets that are on sale for $10 each, including tax. Enter the MAXIMUM number of art sets Jessica can buy with the remaining money.

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J.R. simplified the expression 0.3(5 + 2.5x - 3.2). His steps are shown.

Step 1: 0.3(5 + 2.5x - 3.2)

Step 2: 5.3 + 2.8x - 2.9

Step 3: 5.3 - 2.9 + 2.8x

Step 4: 2.4 + 2.8x

Which statement identifies and explains the first mistake J.R. made?

• His first mistake was in Step 2. He added 0.3 to each term instead of multiplying by 0.3.

• His first mistake was in Step 2. He should have only added 0.3 to 5 instead of adding 0.3 to all 3 terms.

• His first mistake was in Step 3. When reordering the terms, the 2.8x should be negative and the 2.9 should be positive.

• His first mistake was in Step 3. When reordering the terms, 2.9 should be the coefficient of x rather than 2.8.

Find the number that completes the equation. 0.68 + 25/100 = __/100 + 25/100.

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Which graph represents the solution set of this inequaltiy?

10c + 5 < 45

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