Solve the problem.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 80 mph
B. 40 mph
C. 20 mph
D. 50 mph
Answer: C
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Find the values that make the equation true.
= 
A. x = -9; y = -8; z = -7 B. x = 8; y = 7; z = 9 C. x = 9; y = 8; z = 7 D. x = -9; y = 7; z = 8
Convert the compound statement into words.p = "The food tastes delicious."q = "We eat a lot."r = "Nobody has dessert."~q ? (p ? r)
A. We do not eat a lot or the food tastes delicious or nobody has dessert. B. We do not eat a lot and the food tastes delicious and nobody has dessert. C. We eat a lot or the food tastes delicious and nobody has dessert. D. We do not eat a lot or the food tastes delicious and nobody has dessert.
Determine whether the argument is valid or invalid.If I were your friend and you were my soulmate, then I'd never stop liking you. I've stopped liking you. Therefore, I am not your friend or you were not my soulmate.
A. Valid B. Invalid
Describe all symmetries of the figure shown.
A. 2 lines of symmetry, 180° rotation symmetry B. 1 line of symmetry, 180° rotation symmetry C. 4 lines of symmetry, 90° rotation symmetry D. 2 lines of symmetry, 90° rotation symmetry