Salma bought 4 CDs that were each the same price. Including sales tax, she pald a total of $70.40. Each CD had a tax of $1.20. What was the price of each CD before tax?

$16.40 per CD before tax

Step-by-step explanation:

4 CDs cost $70.40

70.40 / 4  = 17.60 (this includes the tax)

Remove the tax

17.60 - 1.20 = $16.40 per CD before tax

(3x-8) or (3x+8)

step-by-step explanation:

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

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