Melissa can combine the red and orange beads and pay $0.50 per 12 beads. She can combine the pink, yellow, and purple beads and pay $1.50 per 8 beads. She will receive a $5 discount on her order. Which expression can be used to find the total cost of her order?

is the total cost where x is number of combined red and orange beads and y is combined  pink, yellow, and purple beads.

Step-by-step explanation:

We are given the following in the question:

Cost of combined red and orange beads = $0.50 per 12 beads

Cost of combined pink, yellow, and purple beads = $1.50 per 8 beads

Discount amount = $5

Let x be the number of combined red and orange beads and y be the number of combined  pink, yellow, and purple beads.

Then, we can write the cost function as:

Total cost =

Cost of red and orange beads + Cost of pink, yellow, and purple beads - Discount

is the required total cost of Melissa's order.

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

easy math just plug in a and b

step-by-step explanation: