Me with this !
translate the sentence into an equation. seven times the difference of a number and 3 is 35
a.
7k – 3 = 35
b.
k – 3 ∙ 7 = 35
c. 7 ∙ (k – 3) = 35
d. 7 ∙ (k + 3) = 35

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?