Expand (-x+2y-3z) 2 using suitable identity. In the figure, points P, Q, R and S lie on a circle. Find the values of x and y. PLEASE FAST HELP

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Asalsa recipe uses green pepper, onion, and tomato in the extended ratio 3: 5: 7. how many cups of tomato are needed to make 105 cups of salsa? a. 7 b. 21 c. 35 d. 49

Which graph shows the solution to the system of linear inequalities? y-4t< 4 y