Choose all situations that state or apply the correct unit rate. if sara pays $9.75 for 5 cupcakes, the price of each cupcake is $1.75. john earns $280 for mowing 8 lawns. at the same rate he will earn $350 for mowing 10 lawns. kayla pays $140 for 10 yoga classes. at the same rate, she will pay $168 for 12 classes. keisha pays $12.50 for 10 cups of coffee each week. at the same rate, keisha can buy 7 cups of coffee for $8.75. ian bikes 60 miles in 5 days. the unit rate is 14 miles each day.

The first one does NOT apply: $9.75 / 5 = $1.95

The second one does apply: $280 / 8 = $35    and $350 / 10 = $35

The third one does apply: $140 / 10 = $14 and $168 / 12 = $14

The fourth one does apply: $12.50 / 10 = $1.25 and $8.75 / 7 = $1.25

The fifth one does NOT apply: 60 / 5 = 12

Hope this helps!

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12