Solve.Roberto invested some money at 8%, and then invested $3000 more than twice this amount at 10%. His total yield after one year was $3660. How much was invested at 10%?
A. $9000
B. $24,000
C. $2700
D. $27,000
Answer: D
Mathematics
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A. (ab + 7)(a2b2 - 49) B. (ab + 7)(a2b2 - 7ab + 49) C. (ab - 7)(a2b2 + 49) D. (ab - 7)(a2b2 + 7ab + 49)
Mathematics
Determine whether the points A, B, and C form a right triangle.A = (2, 3); B = (8, 5); C = (14, -2)
A. Yes B. No
Mathematics
Solve the problem.Junior high classes of 30 students each met in the cafeteria to take achievement tests. If exactly 5 students sat at each table and 18 tables were used, how many classes took the tests?
A. 6 classes B. 5 classes C. 16 classes D. 3 classes
Mathematics
Complete.13.14 m = 
mm
A. 1314 B. 0.131 C. 13,140 D. 0.0131
Mathematics