What variable can you eliminate without multiplying any other equation?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x