Solve the problem.Mary and her brother John collect foreign coins. Mary has three times the number of coins that John has. Together they have 140 foreign coins. Find how many coins Mary has.
A. 98 coins
B. 21 coins
C. 35 coins
D. 105 coins
Answer: D
Mathematics
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Factor the polynomial f(x). Then solve the equation f(x) = 0.f(x) = x3 + 3x2 - 16x - 48
A. (x - 3)(x + 4)(x - 4) ; 3, -4, 4 B. (x + 3)(x + 4)(x - 5) ; 3, -4, 5 C. (x + 3)(x - 4)(x + 4) ; -3, 4, -4 D. (x - 3)(x + 4)(x - 4) ; -3, 4, -4
Mathematics
Find the difference.69 - (-78)
A. 9 B. -9 C. 147 D. -147
Mathematics
Provide an appropriate response.
is the formula to find time.
A. 
B. 
C. 
D. 
Mathematics
Multiply and simplify.
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A. 
B. 
C. 
D. 
Mathematics