Find the solution to the system of equations by substitution.x + y = -5x - y = 14
A. 
B. 
C. 
D. 
Answer: C
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Find the product. Simplify before performing the multiplication.
? 
? 
A. 
B. 
C. 
D. 
Answer the question asked. When necessary, round to the nearest hundredth.Glenn and Paula want to dig an irrigation channel for their newest garden. Together it takes them 1.7 hours to dig an appropriately sized irrigation channel. If Paula can dig the channel by herself in 2.3 hours, how long would it take Glenn by himself to dig the channel? If necessary, round to the nearest tenth of an hour.
A. 4 hr B. 0.6 hr C. 4.8 hr D. 6.5 hr
Solve the equation.
p = 
A. p = 3
B. p = 50
C. p = 
D. p = 
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(5x6 - 6x4 + 7x) + (2x6 + 3x4 - 4x)
A. 7x11 B. 7x - 3x6 + 3x4 C. 9x6 + 8x4 - 10x D. 7x6 - 3x4 + 3x