What’s the equation if 2+6x=28 if x is 4

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Which expression shows the sum of the polynomials with like terms grouped together

In which form is the following function written? y = - 2(x – 3)(x + 5)