If Yafet raises $18 and Darnell raises $24, what fraction of Darnell’s goal did Yafet raise?

Chip worked at the animal shelter for 6 hours each week for several weeks. he worked for a total of 42 hours. which of the following can be used to find the number of weeks chip worked at the animal shelter?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Which function has the domain x> -11?