Use the problem-solving strategy to solve the problem and find the unknown number.A number times 7 increased by 21 minus 5 times the number is the same as the product of 4 and the number, increased by 13.
A. 8
B. -4
C. -8
D. 4
Answer: D
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Rewrite the given expression using an appropriate variable. Use the first letter of the given word as the variable.6 ? (Points)
A. 6 + P B. 6 ? P C. P ÷ 6 D. 6 ÷ P
Factor the trinomial.36 - 13x + x2
A. (x - 4)(x - 9) B. (x - 4)(x + 9) C. (x - 36)(x - 1) D. (x + 4)(x + 9)
Solve the problem.One Internet service provider has the following rate schedule for high-speed Internet service:Monthly service charge$18.001st 50 hours of usefreeNext 50 hours of use$0.25/hourOver 100 hours of use$1.00/hourWhat is the charge for 50 hours of high-speed Internet use in one month?What is the charge for 75 hours of high-speed Internet use in one month?What is the charge for 135 hours of high-speed Internet use in one month?
Fill in the blank(s) with the appropriate word(s).
Find the vertices of the hyperbola.
- 
= 6
A. (-3, 4) and (9, 4) B. (-9, -4) and (3, -4) C. (3, 6) and (3, 2) D. (-3, -2) and (-3, -6)