Mixed Review

Front

What is the formula to calculate sales tax?

Back

Sales Tax = Purchase Price × Sales Tax Rate.

Front

If a refrigerator costs $420 and the sales tax rate is 6%, how much is the sales tax?

Back

Sales Tax = $420 × 0.06 = $25.20.

Front

How do you calculate the total cost including sales tax?

Back

Total Cost = Purchase Price + Sales Tax.

Front

What is the principle of counting outfits with different clothing items?

Back

Multiply the number of options for each category: Total Outfits = (Number of Jeans) × (Number of T-Shirts) × (Number of Shoes).

Front

If you have 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes, how many outfits can you create?

Back

Total Outfits = 5 × 8 × 2 = 80.

Front

Back

Front

How do you solve for x in the equation 52 = -5x - 3?

Back

Rearrange to find x: -5x = 52 + 3; x = -11.

Front

What is the first step in solving the inequality -2x - 3 ≤ 13?

Back

Add 3 to both sides: -2x ≤ 16.

Front

How do you isolate x in the inequality -2x ≤ 16?

Back

Divide both sides by -2 (remember to flip the inequality): x ≥ -8.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is less than, greater than, or not equal to the other.