A leaf blower was marked up 150% from an original cost of $80. Last Friday, Lee bought the leaf blower and paid an additional 7.75% in sales tax. What was his total cost?

$129.30

$80 dollars with and 150% mark up gives you $120 plus 7.75% tax brings you to $129.30

215.50

Step-by-step explanation:

i got it correct

  2087568668/1  

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