Question

Need some help really quick please

Answer 1

14

Explanation:

2.5(r - 4) + 5 = 30

multiply out left side:

2.5r - 10 + 5 = 30

add 5 from both sides:

2.5r - 10 + 5 + 5 = 30 + 5

2.5r = 35

divide bot sides by 2.5:

2.5r/2.5 = 35/2.5

r = 14