The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.40 before the discount, and they leave a 20% tip. If the tip applies to the cost of the meal before the discount, what is the total cost of the meal? Round your intermediate calculations and answer to the nearest cent.

Total Cost = (85% * 78.65) + (20% * 78.65)

= 105% * 78.65

= 1.05 * 78.65

= $82.58

Step-by-step explanation:

$ 80.22

Step-by-step explanation

Assumed 20% tip is on the discounted meal.The cost of the meal is $78.65

The cost of the meal after discount (15%)is 78.65(1−0.15)≈$ 66.85

Tip (20%) is : 66.85⋅0.2$13.37

Total cost of the meal is

66.85+13.37≈$80.22 [Ans]

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol