heidi is saving for a new bike. she has already saved $57. Of heidi earns $9 per hour, how many hours does she need to babysit to afford the bike which costs $129? Write and solve a linear function to solve.

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510

answer: for each 3 girls there is 2 boys . 3: 2

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,