Aglacier receded at a rate of 350 feet per day for 2 consecutive weeks. how much did the glacier position change in all

I’m stuck on this i don’t understand.

Write each expression in exponential form and find its value. 2 x 2 x 2 x 2

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882