What is the length of the radius, r? 8 units 10 units 12 units 16 units

10 units

Step-by-step explanation:

The complete question is:

Line segment KL is tangent to circle J at point K.

What is the length of the radius, r?

see the attached figure

we know that

KL is perpendicular to KJ ----> because KL is tangent to circle J at point K

so

Triangle KLJ is a right triangle

Applying the Pythagorean Theorem

substitute the given values

solve for r

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: