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1. B

2. B

3. D

4. C

5. C

6. C

7a. Yes, it has a steady change rate.

7b. Two miles

7c. 20 - Min / 20

Step-by-step explanation:

1. 46.20 / 12 = 3.85

2. 21 * 2 = 42 (Half hour to whole hour)

42 - 35= 7

3. 140 * .4 = 56 (.4 = 2/5)

4. 4.86 / 3 = 1.62 (Base price)

1.62 * 2 = 3.24

5. 450 * 1.5 = 675

6. Goes right two, up one.

7. A .5 decrease every 10 mins.

So 10/20 would equal .5

10 = 1.5 miles left.

1.5 + .5 equals 2 Miles.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

11

step-by-step explanation:

32.50-7.50=25

225/25=11