What is the surface area of the cylinder? and 20 points d = 10 cm l = 7 cm a) 700π cm^2 b) 175π cm^2 c) 70π cm^2 d) 120π cm^2

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

Need on this geometry question. explain how you did it.