The cost for 7 dance lessons is 82$. the cost for 11 lessons is 122$. write and solve an equation to find the cost of 4 lessons

$52

Step-by-step explanation:

Using the equation

y=mx+c

82=7x+c

122=11x+c

11x-7x=122-82

4x=40

x=10

To get c

82=7(10)+c

82-70=c

c=12

For 4 lessons

y=10(4)+12=52

the answers are in the images, i received 100% on this assignment. hope this !

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are