PLS HELP ME ABOUT THIS INTEGRAND QUESTION :( +50P R: 0 ≤ x ≤ 2 , 0 ≤ y ≤ 1
∫∫R (cosπx + sinπx) dA = ?

Sketch one cycle if the cosine function y=2cos2theta

Which letters from the table represent like terms? a and b b and c a and d b and d

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost