Atruck has and average speed of 50 miles per hour how long will it take for the truck to go 550 miles

Write a real-world solution that can be represented by the equation y = 7x be sure to explain what the variables represented in the solution

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

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2