3. This graph shows the linear relationship between commission $ earned (c) by salesperson and the number of sales he makes (s). Find the
constant of proportionality (r). Using the value for r, enter an equation in
the form of c=rs that represents the relationship between the
commission earned (c) and the number of sales (s).

c=8s (also sorry in advance if this is wrong )

Step-by-step explanation

40=r5

Divide both sides by 5 in order to find r

40 divided by 5=8

5 divided by 5 = 1

r=8

And the final answer is:

c=8s

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: