The school that Mary goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 1 senior citizen ticket and 1 child ticket for a total of $7. The school took in $47 on the second day by selling 13 senior citizen tickets and 2 child tickets. What is the price each of one senior citizen ticket and one child ticket?

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)

it would be 6xy and -16xy.

question

given the diagram below, what is md?

the sum of the interior angles is 360°

take away from 360 the sum of the knows angles and you will have the angle d.

360 - 108 - 108 - 72 = 72°