Solve the system by substitution.

-x-y-z=-8

-4x+4y+5z=7

2x+2z=4

A shelter has enough food to feed an average of 80 hungry people a day for 14 days. If an average of 32 people are at the shelter each day, how long will the food last? A) 5.6 days B) 35 days C) 183 days D) 200 days

Given the equation y = 3x - 4, what is the value of y when x = 4? A) 2 B) 4 C) 8 D) 10

What is the area of a circle with a radius of 7cm?

What is the geometric mean between 2 and 8

Compare and contrast tropics, temperate zones and polar zones

St. bernard's birthweights at a local hospital have a normal distribution with a mean of 110 oz and a standard deviation of 15 oz. the proportion of st. bernard puppies with birthweights between 125 oz and 140 oz is:

What is - 16 + (-28) =

Solve z = 9 over 13 c for c

A square matrix that does not have an inverse is most specifically called a

Tthe equation y^2 - x^2 = 1 represents which conic section