Bill has been saving $7 each week. today he spent $77of the savings, and now he has $42 left. for how many weeks has he been saving

What is the inverse of the function f(x)=4x+8

Which of these choices show a pair of equivalent expressions?

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?