I think it's 54 miles per hour.
Because 18*3=54
9 less means subtract
the product of 5 and the number n mea multiply 5 and n
D. 5n-9
Hopefully that I can Help ... A.53
Answer:
34
Step-by-step explanation:
52-35 = 17
$17 divided by $0.50 = 34 texst messages
5x^2-x(x+4)
5x^2-x^2-4x
4x^2-4x is your answer
