Elena starts to walk home from school but has to turn around and go back because she left something in her locker. On her way back home (the second time), she runs into her friend
who invites her to the library to do homework with her. She stays at the library and then
heads home to do her chores. Determine:
Which graph fits Elena's story.
What the two quantities are.
Which quantity is a function of which?

21

Step-by-step explanation:

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)

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x