The sales tax for an item was $7.40 and it cost $370 before tax.

2% Sales tax

Step-by-step explanation:

Basically if you divide 7.40 by the 370 you get .02, and if you move the decimal 2 spots to the right then you get the sales tax percentage.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

it is x equals 3   plese mark me really need it

step-by-step explanation: