Agift shop buys greeting card $3.50 each and sells them at 80% mark up. at what price dose the gift shop sell each greeting card? practice 6.5 -percent of change

$6.30

Step-by-step explanation:

The 100% of cost is $3.50. The greeting cards are mocked up 80%. This means the customers pay 100% and 80% so 180%. To find the new price, create a proportion of equal ratios:

Solve for x through cross multiplying:

3.50(180) = 100(x)

630 = 100x

6.30=x

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

step-by-step explanation: