Madison went to the mall with her big sister last week and their mom drop them off at 1 o'clock and said i'll pick you up at 2: 30 the girls been 56 of an hour at the toy store 2/3 of an hour at the pet store and 1/2 of an hour at the food court when they got back to the bench to meet their mom she was already there who long was her mom waiting

56 min at the toy store (1:56)

40 min at the pet store (2:36 i believe)

30 min at the food court (3:06 if i'm correct^^)

the mom was waiting for about 1 hour and 6 min

I hope this was right worked hard

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

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

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form