Mike had a coupon for 20% off the price of a shirt at a certain store. • On the day he went, the store was also having a sale.
• The original price of the shirt was $25.50.
• The price after the coupon and the additional discount was $18.3

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐