Help :( it would make my day #TGIF

5 times

Step-by-step explanation:

Assume the height of the streetlamp to be x

If you make a diagram from the details given by the question you should find two pairs of similar sides, from which you can form the equation

Solving this gives the height of the streetlamp as 30 feet. Divide this length by the height of the man to get the number of times the streetlamp is taller.

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5