Evaluate the expression for the given value or values of the variables.b2 - 4ac; a = 2, b = -6, c = 6
A. -22
B. -18
C. -12
D. -8
Answer: C
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Evaluate the following expression. ? 72· 7 ?
A. 225 B. 347 C. 3375 D. 346 E. 343
Solve the problem.By walking src="https://sciemce.com/media/4/ppg__rrr0709190917__f1q37g6.jpg" alt="" style="vertical-align: -4.0px;" />
A. 5 hr
B. 3 hr
C. 2 hr
D. 1 hr
for one period of time and 
for another, Roger traveled 
Had he walked 
faster throughout, he would have 
miles. How many hours did he walk at
Given that m varies jointly with the square of n and the square root of q, and src="https://sciemce.com/media/3/ppg__cognero__2.6_Proportion_and_Variation__media__29a85294-cd69-4d94-8041-f1e4a2459ce0.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_9b88db272d554103b828b3b28" />, find m when 
when 
and 
and 
.
Fill in the blank(s) with the appropriate word(s).
Find the area of the rectangle.
18 yd
A. 1934 sq yd B. 1620 sq yd C. 126 sq yd D. 1944 sq yd