Answer:
the bottom one b and c
Step-by-step explanation:
it goes at a steady rate of 2b=c
C. 5 packs of pencils and 3 packs of erasers. it is c because no matter what 20(the pack of erasers) is multiplied by it will always end in a zero, therefore you would have to multiply 12 by a number that would make it a multiple of 20 as well which happens to be 5. 5×12=60 and 3×20=60
We are asked to determine the present value of an annuity that is paid at the end of each period. Therefore, we need to use the formula for present value ordinary, which is:

Where:

Since the interest is compounded semi-annually this means that it is compounded 2 times a year, therefore, k = 2. Now we need to convert the interest rate into decimal form. To do that we will divide the interest rate by 100:

Now we substitute the values:

Now we solve the operations, we get:

Therefore, the present value must be $39462.50
Answer:
i think you ment to put this in the scenice section no math but it is a okay, il try my best to help you here
Step-by-step explanation:
because glucose is just pure sugar, and it breaks down because thats what glucose is, is energy.
i hope this has helpped you