Sales tax in Albany County is 7%, or .07 for each dollar spent. Which expression shows how to calculate the sales tax on a purchase of $49.00? A$49.00 × 0.007 B$49.00 × 0.07 C$49.00 × 0.7 D$49.00 × 7

B

Step-by-step explanation:

To find the sales tax on a purchase of $49, what we simply do is to find 7% of $49. This means that we do the percentage calculation. To do this , we simply place 7 all over 100 and multiply by the purchase amount

This can be written as 7/100 * 49 and this is same as 0.07 * $49

B is the correct answer

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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step-by-step explanation:

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