It costs $15 for one surfing lesson and $25 per day to rent a surfboard. Write an expression for the total cost of one lesson and renting a surfboard for y days.

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

hm let me think hm think think hm think yes

set the two equations for y equal to each other. solve for x. this will be the x-coordinate for the point of intersection. use this x-coordinate and plug it into either of the original equations for the lines and solve for y.

d. 5.43x1012 h.5.43e12