Please help, answer what you can. Anything helps

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.