3 years ago

Nancy bought a mobile phone marked at $720 at a discount

1 answer:

7 0

20% of $720( original cost)= $144 (discount)
$720- $ 144 = $576 (discounted cost)
5% tax = $36 (tax payed)
tax + cost of phone = $612 (total of both tax and discounted cost)

20% of $612=$122.40 (deposit cost?)

You might be interested in

Can anyone help me evaluate this f(x)=8+4x the functions are 0 and -2.

Fynjy0 [20]

Answer: f(0)=8

f(-2)=0

Step-by-step explanation:

f(0)=8+4(0)

f(0)=8+0

f(0)=8

f(-2)=8+4(-2)

f(-2)=8+(-8)

f(-2)=8-8

f(-2)=0

3 0

1 year ago

If x = -4, calculate 2x squared - 5

Varvara68 [4.7K]

You just substitute the value of x in the given equation:

f(x) = 2x^2 - 5

f(-4) = 2 (-4)^2 -5 = 27

f(x) : a name given to the equation
f(-4): refer to the equation when the value of the independent variable x has the value between the brackets.

5 0

3 years ago

Question 2 (2 points)

Sati [7]

Answer:

Step-by-step explanation:

this question has already been answered on gauth math