Which equations are in standard form? Check all that apply O y = 2x + 5
2x + 3y = -6
-4x + 3y = 12
Oy = {x-9
2x+3 = 6
O x-y=5
5x + 3y = }

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?