PLEASE HELP ME SOLVE THIS 7TH GRADE MATH PROBLEM, THANK YOU!

Answer:The correct answer is s = 27.Step-by-step explanation:This problem already gives us an equation so all we need to do is plug in the numbers:c = 39.95 + 0.15(s + r) becomes 53.45 = 39.95 + 0.15(s + 63). Now to solve:53.45 = 39.95 + 0.15(s + 63)13.50 = 0.15(s + 63)                     Subtract 39.95 from both sides13.50 = 0.15s + 9.45                    Distribute 0.15 to s and 634.05 = 0.15s                                 Subtract 9.45 from both sides27 = s                                           Divide both sides by 0.15Hope this helps,❤A.W.E.S.W.A.N.❤