A store buys 14 sweaters for $84 and sells them for $350. If p represents the total profit in dollars and cents when the store buys any number of sweaters, s, write a proportional equation for p in terms of that matches the context. -help I need the answer and an explanation plz​

it has to be a.

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,