Evaulate 5 (n+3) - 7n, when n=1/2

Kyle drive his truck 429 miles on 33 gallons of gas how many miles can Kyle drive on one gallon of gas

7 bowls cost 21 dollars. how much do 15 bowls cost?

What are the first, second, and third frequencies audible from a 20 cm long organ pipe when (A) only one end is open and when (B) both ends are open. The speed of sound through the air inside the organ pipe is 343m/s.

V=1/6√π S 3/2 find V when s=60m'2 π=3.14

What is 9 times 9. (my calculator Broke)

The amazon rainforest covered 6.42 million square kilometers in 1994. In 2014, it covered 50/59 as much. Which is closest to the area of the amazon forest in 2014? A. 6.4 million km2 B. 5.4 million km2 C. 4.4 million km2 D. 3.4 million km2 E. 2.

In june 2005, Peter mailed a package from his local post office in Fayetteville North Carolina to a friend in Radford, virginia for $2.07. the first class rate at the time was $0.23 per ounce.

Tasha is decorating a rectangular bulletin board by putting ribbon around its outer edge. The bulletin board is 14 in wide and 18 in tall how many inches of ribbon does she need?

What is the relationship of the angles of a triangle

18. There are 8 teachers going to the science museum. If each teacher pays $15 to get inside, how much did the teachers pay? $