Add or subtract.13 - (-4)
A. 9
B. -17
C. 17
D. -9
Answer: C
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Multiply and simplify.
? 3b
A. 
b
B. 
C. 
D. 11b
Find an equation of the sphere with center (7,-5,7) that touches the xy-plane.
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Solve the problem.Jane borrowed $28,340 over 1.2 years. The simple interest has a rate of 11% pear year. What is the maturity value of the loan?
A. $35,198.28 B. $31,769.14 C. $32,080.88 D. $30,308.88
Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1. If a right triangle has one leg that is 2 cm long and another leg that is 3 cm long, the area of the triangle is 3 cm2 2. All rectangles with the same perimeter have the same area. 3. All parallelograms with the same area have the same perimeter. 4. The perimeter of a 3" by 1" rectangle is 8 sq.in. 5. The area of a right triangle with legs a and b is one-half the area of a rectangle with dimensions a and b.