The number of books (b) in a preschool classroom is proportional to the number of children (c) enrolled. If the preschool has three books in a classroom for each child enrolled, which equation represents the total number of books in the classroom?

A. b=3c

B. b=3+c

C. b= 1 over 3c

D. b=3-c

Marcus built a model car that is 4 inches wide. what scale was used to build the car if the actual width of the car is 6 feet? a. 1 in. = 2 ftb. 1 in. = 2.5 ftc. 1 in. = 1.5 ftd. 1 ft = 1.5 in.

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?

Atemperature of 1.64◦f corresponds to answer in units of ◦c.