Plzz i don’t understand this?

1) there were 32 bales added

2) 8 hours

3) 74 cards

4) 11 packs

5) $57

6) $3?

7) began with 12

8) $5 per candy bar

9) 44 students on each bus

10) $77 spent on baseball gear

answer:

slope = -

step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 2x + 7 is in this form with slope m = 2

this line is perpendicular to the side it bisects.

given a line with slope m then the slope of a line perpendicular to it is

= - = -

answer:

option b is correct.

step-by-step explanation:

given the equation:  

we can write 9 as:

9 = 5+ 4

then;

using distributive property:

apply distributive property:

therefore, the expression which is equivalent to   is