The cost C, in dollars, of a prepaid cell phone call is proportional to the time t, in minutes, that the call lasts. The equation that represents this relationship for Carrier A is C = 0.15t. The table below shows the relationship for Carrier B. Which carrier has a lower unit rate?
Time
(minutes)
2
5
10
30
Cost
(dollars)
0.24
0.60
1.20
3.60
A
Carrier A
B
Carrier B
С
Both carriers have the same rate
D
The relationship cannot be determined

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

5. (03.02)if g(x) = x2 + 3, find g(4). (2 points)1619811