D(2,1) on a coordinate plane

What does x = in this equation x+3+2x=x+5

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)