Can someone please help me? 1.Modeling with mathematics: The total cost C (in dollars) to participate in a ski club is given by the literal equation C=85x+60, where x is the number of ski trips you take.

a. Solve the equation for x.

b. How many ski trips do you take if you spend a total of $315 and $485?​

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next