The area of the parallelogram is 4.2 cm? ih b = 1.75 cm what is the height of the parallelogram?​

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

Which of the following contains a variable?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq