The ratio of blue cars to red cars in a garage is 7:4. If there are 21 blue cars in the garage then how many red cars must be in the garage?

3. solve the given inequality and graph the solution on a number line.

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}