Keith has $780 in a savings account at the beginning of his summer vacation. He is choosing to not work this summer. Each week he spends $68 on gas and lunch. His goal is to have at least $200 by the time he goes back to college. How many weeks can Keith continue to live like this and still make his savings goal?

2770$ hopes this helps

Step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b