Two points on the same side of the tree are 65 feet apart. the angles of elevation to the top of a 10.5 foot tree are 21˚19’ from one point and 16˚20’ from the other point. find the distance from the tree to the closest point

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Can someone me with this problem . show your work .

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