1. Adam burns 850 calories when he runs for one hour, suppose he runs 3 hours . write the expression which represents this situation.
2. Mr. Martin bought a microwave that was originally priced at $200. He received a 30% discount. What is the sale price of the microwave?
# * SHOW YOUR WORK*

1. If Adam burns 850 calories per hour

850×3=2550 calories for 3 hours

2. If the original price is 200$ and the discount is 30%

We get:

200 × 30

Which can be written as

200×0.3

=60

So 30% of 200 is 60

now to calculate the new price

200-60=140$

The new price is 140$

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.

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.