Quick! Please Help Me ASAP! Ernesto brings his dog to training classes. The equation -60x+2y-120=0 relates y, the total cost of a pet's training, and x, the number of classes taken. Ernesto states that the line represented of the line represented by the equation is 30. Is he correct? Explain your reasoning.

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?