PLS HELP I WILL GIVE BRAINLIESTPLS HELP I WILL GIVE BRAINLIESTPLS HELP I WILL GIVE BRAINLIEST

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

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

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )