Sara has saved $6. She earns $7 per hour at her job. She needs a minimum of $94 to buy her new bike. What is the minimum number of hours she must work?

13 hours

Step-by-step  If she needs 94$ for a bike and and gets 7$ an hour it will take 13 hours for her to get to 94$ she will also have left over cash..

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated