In 2018, there were about 32 million teenagers (aged 13-17) in the United States. They each sent an average of 1200 text messages per month. About how many text messages did all of the
teenagers in the United States send each month? Express your answer using scientific notation.

About 38,400,000,000 text

thirty eight billion + four hundred million

Step-by-step explanation:

i believe the answer is d.

hope it you! : d

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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