Help me please 50 points .

D. $80

Step-by-step explanation:

kayla equation: 30x+20=y

Sara equation: 35x+10=y

30x+20=35x+10

10=5x

2=x

30(2)+20=$80

35(2)+10=$80

$80

Step-by-step explanation:

Kayla:

Lesson fee ($30) + first-time fee ($20) = 50

Another lesson fee will make is $80

Sara:

Lesson fee ($35) + first-time fee ($10) = 45

Another lesson fee will make $80

Answer = 80

the answer is (-4,-4)

hope this ! : d

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8