Solve the problem by using a nonlinear system.The sum of the squares of the digits of a positive two-digit number is 85, and the tens digit is 1 less than the units digit. Find the number.
A. 56
B. 67
C. 65
D. 76
Answer: B
Mathematics
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Add.1.564a + 6.4a
A. 7.965a B. 8.074a C. 7.954a D. 7.964a
Mathematics
Solve the problem.On a map of the Thunderbird Country Club golf course, 1.5 inches represent 30 yards. How long is the 6th hole if the map shows 14 inches?
A. 3.2 yd B. 280 yd C. 420 yd D. 630 yd
Mathematics
Solve and graph the inequality.13x - 1 > 12x - 13
A. x > -12
B. x ? -14 
C. x < -12
D. x ? -14
Mathematics
Solve the system of equations using the substitution method.
A. (-2, -7) B. (2, -7) C. (3, -7) D. (-7, 2)
Mathematics