Solve and check the linear equation.-2x - 5 + 7(x + 1) = 6x + 6
A. 
B. 
C. 
D. 
Answer: A
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Compute, rounding to the nearest tenth.
A. 91.0 B. 9.1 C. 92.0 D. 9.2
Solve the problem.The surface area of a balloon is given by S(r) = 4?r2, where r is the radius of the balloon. If the radius is increasing with time t, as the balloon is being blown up, according to the formula 
find the surface area S as a function of the time t.
A. S(r(t)) = 
?t3
B. S(r(t)) = 
?t9
C. S(r(t)) = 
?t6
D. S(r(t)) = 
?t6
Find the missing number.
= 12y3
A. 144y6 B. 144y3 C. 12y3 D. 12y6
The information below refers to triangle ABC.
?
inches. Find all the missing parts.
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
A. 
inches, 
inches
B. 
inches, 
inches
C. 
inches, 
inches
D. 
inches, 
inches
E. 
inches, 
inches