Which choices best describes the solution (s) of the system of equations?

-16x+8y=16

-18x + 9y-18

If a ratio of boys to girls is 1:4 and there are 20 girls in your class, how many boys are there

A submarine dives 15.8m below the surface of the water. Then it dives down an additional 4.4m. About how far below the surface of the water is the submarine?

The rectangular floor of restaurant is 56 feet in length and 40 feet in width. A scale drawing of the floor has a length of 7 inches. What is the area in square inches of the floor in the scale drawing?

What is 2 1/5 divided by 1 1/4 simplified?

The perimeter of a rectangle is 34 units. it's width is 6.5 units. Write an equation to determine the length of the rectangle

17=14 3/4 + 1/6 + missing number

The world record for the women's 3,000-m steeplechase is 9 min 1.59 s. Find the runner's speed in meters per second. Round answer to the nearest hundredths.

A rectangle has an area of 85 square cm. If the length is 2 more than 3 times its width, find the dimensions of the rectangle

If arrivals occur at a mean rate of 3.6 events per hour, the exponential probability of waiting more than 0.5 hour for the next arrival is:

A multiple number of 7 and divisible by 5 and greater than 55