Frank wants to buy an entertainment system that costs $500, including taxes. To pay for the entertainment system, he will use a payment plan the requires him to make a down payment of $125, and then pay $72.50 each month for 6 months. What is the percent increase from the original cost of the entertainment system to the cost of the entertainment system using the payment plan?

The percent increase from the original cost of the entertainment system to the cost of the entertainment system using the payment plan is 12%.

Step-by-step explanation:

Percentage increase = (higher value - lower value/ lower value) 100

⇒ ((560-500)/500) 100

⇒ (60/500) 100

⇒ 0.12 100

⇒ 12%

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!