9. A bank teller has a totalof 124 bills in five-do lar bills and ten-do lar bills. The total value of the money is $840. How many fivead ten-do lar bills does shehave? (SOLVE THIS ONE) Equations:

Number of 5 dollar bills:

Number of 10 dollar bills:

5x + 10y = 124
x + y = 840
5x + 10y = 840
x + y = 124
x+y = 840
x + y = 124
4
44
60
64
80
120

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

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?

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression