X and y are integers. y≥22
x + y≤4
y≤2x + 2
Mark on the grid all the points
that fulfill all three inequalities.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

X-10/4 when x = –18 a 7 b –2 c –7 d 2

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great