Arleen has a gift card for a local lawn and garden store. she uses the gift card to rent a tiller for 6 days. it costs $48 per day to rent the tiller. she also buys a rake for $7. find the change to the value of her gift card. the value on her gift card decreased by how many dollars.

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

answer: 819.89 miles across america

step-by-step explanation:

jbankston is right, use thhe link and you should find the answer.