2. Green Grass, Inc. charges an initial fee of $15 plus $10 per hour for lawn services. Their main competitor, S & G Lawn Care, charges an
initial fee of $35 plus $7 per hour.
a. When would the charges for each company be equal?
b. Explain two different methods that could be used to determine
when it would be better to use Green Grass, Inc. and when it
would be better to use their competitor, S & G Lawn Care.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

a is the right answer

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.