What is the solution of the following system?

{-2x - y = 1

{-4x - 2y = - 1

A. infinite solutions

B. no solution

C. (3,8)

D. (-3,-8)

13. In the above figure, ∠AOB = 80°. What does ∠ACB equal? A. 10° B. 80° C. 40° D. 160°

A manufacturer wants to enlarge an existing manufacturing facility such that the total floor area is 1.5 times that of the current facility. The floor area of the current facility is a rectangular and measures 300 feet (length) by 140 feet (width).

Turning of the water while brushing your teeth saves 379 centiliters off water. how many liters of water can you save if you turn of the water while you brush three times'

Noya is trying to decide which printer is the best deal. The first printer costs $90, and each ink cartridge costs $30 to replace. The second printer costs $113, and each ink cartridge costs $25 to replace.

A rectangular garden is fenced on all sides with 256 feet of fencing. The garden is 8 feet longer than it is wide. Find the length and width of the garden.

Which shows how to solve the equation - 4/5 x=80 for x in one step

Sandy has 16 roses, 8 daisies and 32 tulips. She wants to arrange all the flowers in bouquets. Each bouquet has the same number of flowers and has only one type of flower. What is the greatest number of flowers that could be in each bouquet?

Alexis and Jonathan challenged each other to a typing test. Alexis typed 54 word in one minute, which was 120% of what Jonathan typed. How many words did Jonathan type in one minute?

Leona places a cone with a volume of 512 cm3 into a rectangular fish tank that has two square faces, each with sides measuring 20cm, and three rectangular each that are 49cm long and 20cm wide.

Percent increase from 86 to 150