19) John invested a sum of money which earned $750 simple interest at the rate of 6% over 2 years. How much did John invest?
a) $88.80
b) $6250
c) $3125
d) $2175
HELP PLS

The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Can someone me do math because i am having a breakdown rn because i don’t get it