Just answer plz no step-by-step
jim wanted to know the age of his math teacher, ms. greenberg. the teacher said that if he added 28 to her age and then doubled it, the total would be 120.

how old is jim's teacher?
a. 88
b. 64
c. 56
d. 32

Factor. 8x2y2 – 4x2y – 12xy 4(8x2y2 – x – 12xy) 4(2xy – 4x2y – 12xy) 4x2y2(2xy – xy –3) 4xy(2xy – x – 3)

Asquare parking lot has 6,400 square meters what is the length in meters

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation