You want to buy 30 calcuators that cost $ 8.80 each. explain how solve that by using mental math and the distributive property

30 × 8.8 = 30 × (8 + 0.8) = 240 + 24 = 264

Step-by-step explanation:

I want to buy 30 calculators that cost $ 8.80 each.

So, to calculate the total price, we have to multiply 8.8 with 30.

Now, we have to calculate this multiplication mentally.

To do this, we can write the multiplication as 30(8 + 0.8).

So, we can separately multiply 30 with 8 and calculate it mentally to be 240 and then multiply 30 with 0.8 and calculate it mentally to be 24 and finally add the two products.

Therefore, 30 × 8.8 = 240 + 24 = 264 (Answer)

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation: