Find the difference.a + b, for a = 4 and b = -2
A. -2
B. -6
C. 2
D. 6
Answer: C
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Graph the linear function. Give the domain and range.g(x) = x - 4
A. Domain: (-?, ?)
Range: (-?, ?)
B. Domain: (-?, ?)
Range: (-?, ?)
Beverages were sold to parents and children at a school basketball game in the quantities and prices given in Figures 1 and 2.Figure 1 Quantities CoffeeMilkColaAdult males21528310Adult females33819348Children5103758? Figure 2 PriceCoffee$0.40Milk$0.50Cola$1.20 How much money were spent by adult males, adult females and children?Please enter your answer as three numbers, separated by a comma, rounded to the nearest tenth.
What will be an ideal response?
Add or subtract as indicated. Simplify, if necessary.
+ 
A. 1
B. 
C. 
D. 
Use graphical methods to solve the linear programming problem.Suppose an horse feed to be mixed from soybean meal and oats must contain at least 100 lb of protein, 20 lb of fat, and 9 lb of mineral ash. Each 100-lb sack of soybean meal costs $20 and contains 50 lb of protein, 10 lb of fat, and 8 lb of mineral ash. Each 100-lb sack of oats costs $10 and contains 20 lb of protein, 5 lb of fat, and 1 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost?
A.
| 2 sacks of soybeans and 0 sacks of oats |
B.
sacks of soybeans and 
sacks of oatsC. 0 sacks of soybeans and 2 sacks of oats
D.
sacks of soybeans and 
sacks of oats