Factor out the greatest common factor.3x2y5 + 21x2y4
A. 3x4y2(y + 7)
B. x2y4(3y + 7)
C. y + 7
D. 3x2y4(y + 7)
Answer: D
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Solve the problem.A room measures 15 ft by 
The ceiling is 
above the floor. The door measures 
by 
If a gallon of paint will cover 79.6 ft2, how many gallons of paint are needed to paint the room? Assume that the ceiling will be painted but not the door. Round your answer up to the next whole number.
A. 14 gal B. 24 gal C. 4 gal D. 10 gal
Fill in missing table value.The following table provides data showing how yearly premiums for car insurance increase with an accident on record.
A. 
B. 
C. 
D. 
Multiply. Write the answer in simplest form.- 
? 
A. - 
B. - 
C. - 
D. 
Find an equation for the ellipse described.Center at (0, 0); focus at (3, 0); vertex at (8, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1