A convenience store sell pre-paid mobile phones. It purchases them for $12 each and uses a mark up rate of 250%. a. The markup rate is the constant of proportionality in the equation y= kx. Write an equation that can be used to find the amount of markup on the cost x of a phone

b. Use the equation to calculate the markup amount. What is the retail price of a phone?

c. Next week the store is going to reduce the price to $31.50. Calculate what percent the sale price is of the retail price.

d. Based on your answer to part C, what is an equation in the form y = kx that relates the sale price to the retail price x?

Step-by-step explanation:

yall made me mad

there has been genes found in the x chromosome of males that have been linked to [homo/hetero]sexuality. in addition to the reign of the x chromosome, a section of chromosome 8 has also been link to, "alot of ppl are so " these facts were proven true after a 2014 study of a gay male and his strait brother. according to newscientist.com,"chromosome 14 and is mainly active in the thyroid, but also the brain. called tshr, it makes a type of receptor protein that recognises and binds to a hormone that stimulates the thyroid. in this way, the gene plays an important role in controlling thyroid function. the fact that tshr seems to be involved in sexual orientation fits with evidence that thyroid function seems to be linked to sexuality."

in conclusion, "ppl are so gay" due to their genetics.

explanation:

step-by-step explanation: