Answer:
D. 14.99d
Step-by-step explanation:
d represents the number of DVD's she purchased, and 14.99 was the cost for each DVD. Answer D is multiplying the variable d and the coefficient 14.99. When multiplying variables, there is no need to place a multiplication sign.
Answer: The volume is 90.47 
Step-by-step explanation:
1. To solve this problem you need to use the formula for calculate the density, which is shown below:

Where
is the mass and
is the volume.
2. You must solve for the volume, as following:

3. Now, you must substitute the values of the mas and the density, which are given in the problem. Therefore, you have:

it's rate..
how fast it's moving towards +- infinity
Answer: 4:5
Step-by-step explanation: First find a number 12 and 15 can both be divided by. I found 3, and did the following:
12/3=4
15/3=5
The ratio of boys to girls in Luka's math class is 4:5
Answer:
can you post a picture of the question?