Solve the problem.A cellular phone plan had the following schedule of charges:Basic service, including 100 minutes of calls$20.00 per month2nd 100 minutes of calls$0.075 per minuteAdditional minutes of calls$0.10 per minuteWhat is the charge for 200 minutes of calls in one month?What is the charge for 250 minutes of calls in one month?Construct a function that relates the monthly charge C for x minutes of calls.
What will be an ideal response?
$27.50
$32.50;
C(x) = 
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Provide an appropriate response.Solving for which variable in which equation involves the least amount of work?x + 9y = 0x - 9y = 72
A. y in equation 2 B. x in equation 1 C. y in equation 1 D. x in equation 2
For the given equation, determine the values of a, b, and c, the direction in which the parabola opens, and the y-intercept.y = 4x2 + 2x
A. 
B. 
C. 
D. 
Evaluate the polynomial for the given value.2x2 - 7x + 3 when x = -4
A. 63 B. 7 C. -1 D. -57
Solve the problem.In one country, it is estimated that in the year 2050, 9% of the population will be over 70. If the population of this country in 2050 is 446 million, how many people will be over 70?
A. 35.68 million B. 401.40 million C. 40.14 million D. 44.60 million