Andrew and Griffin both worked hard over the weekend. Together they earned a total of $65. Griffin earned $15 more than Andrew. (a) Write a system of equations for the situation. Use a for the amount Andrew earned and g for the amount Griffin earned. (b) Graph the equations in the system. (c) Use your graph to estimate how much each person earned. (You must solve by graphing, other solving methods will not earn credit)

s

65+15=80

Step-by-step explanation:

answer: 1 and 3

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