Answer:

She can make 12 portions

ANSWER:

A car loses its value at a rate of

4.5%

annually. If a car is purchased for

$24,500

, which equation can be used to determine the value of the car,

A population of bacteria grows by

35%

every hour. If the population begins with

100

specimens, how many are there after

6

hours?

If a population that is initially

100

triples every year, which of the following is an expression for the size of the population after t months? （   ）

A.

100

×3t

B.

100

×123t

C.

100

×3t12

D.

100

×312t

Write a function rule to model the cost per month of a long distance cell phone plan. Then evaluate the function for the given number of minutes. （   ）

Monthly Service fee:

$3.12

$0.18

per minute

Minutes used:

100

A.

f(x)

=3.12x

+100

;

$312.18

B.

f(x)

=100x

+3.12

;

$312.18

C.

f(x)

=0.18x

+3.12

;

$21.12

D.

None of the above

Tom makes coffee every morning. He usually uses

4

scoops of coffee beans to make

9

cups of coffee. How many scoops should he use if he wants to make

12

cups of coffee and keep the same proportions? （   ）

A.

7

B.

513

C.

6

D.

6.5

E.

713

Step-by-step explanation:

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