9. Karin decided to start her own chemistry lab in his bedroom so she could begin practicing to become the chemist who would finally cure the flu. She found a beginner's chemistry set online with most of the beakers, Bunsen burners and other equipment she need for $250.00. She also found a set of starter chemical solutions like Hydrochloric Acid, Hydroxide, Iron, Copper and Silver, all for $135.00. If she purchased both sets together would receive a 5% discount off the total price. A sales tax of 5% would be applied after the discount. What was the final price of her purchase? Show your work.

the barter

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

answer: its the third option.

step-by-step explanation:

i just took the test.

answer:   x*94 +688*6   = 267*100

94x+4128=26700    

94x=22572     /94

x=240.128

step-by-step explanation: mark as brainlest reallly need it thx