Simplify. 3 (2x+4y-2z) + 7 (x+y-4z)

a. 13x+5y-22z

b. - x-19y+22z

c. 13x+19y-34z

d. - x-5y+34z

A bank contains 30 coins, consisting of nickels, dimes, and quarters. There are twice as many nickels as quarters and the remaining coins are dimes. If the total value of the coins is 3.35. What is the number of each type of coin in the bank?

Carl is paid $10 plus $8 an hour. he was paid $66. how many hours did he work

How do you round to the nearest hundredth 23.480cm

24.5 times 8.76 show work

2. An arctictern flies a distance of 245km in 9 hours. How fast does it fly?

nancy bought 7 1/2 gallons of milk for the school cafeteria. she bought only half-gallon containers. how many half gallon containers did she buy

What is the easiest way to find a geometric mean?

A gas station charges $2.19 per gallon of gas. Use function notaion to describe the relationship between the total cost C (g) and the number of gallons purchased (g).

A triangle has an area of 30 cm². The base and height are scaled by a factor of 3. What is the area of the resulting triangle?

The probability that an individual is left-handed is 0.12. in a class of 39 students, what is the probability of finding five left-handers