Provide an appropriate response.Use the concept of cardinality of sets to explain why 2 < 5.
What will be an ideal response?
Answers will vary. Sample answer: Let A = {a, b} with n(A) = 2, and let B = {a, b, c, d, e} with n(B) = 5. Since A is a proper subset of B, n(A) < n(B). Therefore, 2 < 5.
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Solve the problem. A foreign exchange student decided to purchase an international calling plan. The monthly cost of the plan is $19.99 plus $0.08 per minute. This can be modeled by the equation 
where C is the monthly cost and m is the number of minutes used each month. Graph this equation, assuming the student will not use more than 400 minutes in a month.Monthly Cost of Cell Phone Use
A.
| Monthly Cost of Cell Phone Use |
B.
| Monthly Cost of Cell Phone Use |
C.
| Monthly Cost of Cell Phone Use |
D.
| Monthly Cost of Cell Phone Use |
Convert the angle given in radian measure into degrees. Round to two decimal places if needed.
radians
A. 60° B. 1° C. 60?° D. 3°
Classify the polynomial as a monomial, binomial, trinomial, or none of these.-7x2
A. none of these B. trinomial C. monomial D. binomial
Decide whether the ordered pair is a solution to the given equation.(2, 3);y = 2x - 7
A. (2, 3) is a solution B. (2, 3) is not a solution