Find 
.
?
, 
?
A. 
?
B. ??
C. 
D. 
?
E. 
?
Answer: A
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Solve the problems.A serving of snack crackers contains 5 grams of protein in each 31 gram serving. How many milligrams of protein are in 7 servings?
A. 108,500 mg B. 3,500 mg C. 35,000 mg D. 1,085 mg
Solve the formula for the specified letter.L = 
for d
A. d = 
B. d = LD - R - L
C. d = 
D. d = 
Solve the problem.Two phone companies compete for customers in a city. Company 1 retains 3/4 of its customers and loses 1/4 of its customers to Company 2. Company 2 retains 5/6 of its customers and loses 1/6 to Company 1. If we represent the fraction of the market held last year by 
, where a is the number the that Company 1 had last year and b is the number that Company 2 had last year, then the number that each company will have this year can be found by the following matrix equation. 
= 
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If Company 1 has A = 90,000 customers and Company 2 has B = 198,000 customers this year, how many customers did Company 1 have last year?
A. 76,000 customers
B. 222,000 customers
C. 216,000 customers
D. 72,000 customers
Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.y = 3-xy = - 
A. (1, 3) B. ? C. (-1, 3) D. (1, -3)