A sweater that is regularly priced at $25 is on sale for 25% off. What is the amount of the discount?

What is the sale price?

What is the total price of the sweater including the 6.5% sales tax?

need help now plz

Discount = 6.25

Sale Price = 18.75

6.5% tax = 1.21875

Final price = 19.96875 = 19.97

Step-by-step explanation:

25 x .25 = discount

25 - 6.25 = sale price

18.75 × 0.065 = tax

18.75 + 1.21875 = final price

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.