Evaluate the expression using the given values.r - 7u - 
(s - 6t); r = -0.5, s = 5, t = -5, u = 3.5
A. - 20
B. -31
C. -18
D. -32
Answer: D
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Provide an appropriate response. Solve a2 + b2 = c2 for b.
A. b = 
B. b = 
C.
b = c2 - a2
D.
b = a2 - c2
Write the whole number in expanded form.569
A. 500 + 60 + 9 B. 900 + 60 + 5 C. 56,900 D. 5000 + 600 + 90
Solve the problem.Find two complementary angles such that the measure of the first angle is x°, and the measure of the second angle is (3x - 2)°.
A. 1st angle = 22°; 2nd angle = 64° B. 1st angle = 31°; 2nd angle = 59° C. 1st angle = 23°; 2nd angle = 67° D. 1st angle = 22°; 2nd angle = 68°
Solve.A water tank can be filled in 5 minutes and emptied in 8 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 15 min B. 26 min C. 3 min D. 13.33 min