Speakers cost $22 and songs cost $1.25 each. The sales tax rate is 7.5%. The expression 0.075(22 + 1.25s) can be used to determine the entire purchase of speakers and songs. Expand the expression and round to the hundredth.

Total cost = 23.65 + 1.34s

Step-by-step explanation:

This is just the tax;

0.075(22) + 0.075(1.25s)

1.65 + 0.09375

Total cost = 22 + 1.25s + 1.65 + 0.09375

Total cost = 23.65 + 1.34375s

Total cost = 23.65 + 1.34s

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column