Answer:
x=10
Step-by-step explanation:
group like terms
13x+5x+7x+8x+24+7+2+-3=360
33x+30=360
33×=360-30
33x=330
divide both sides by 33
x=10
I can help with the second part of your question. The first part is missing something.
To find the amount of interest, just multiply the amount by the given percent.
200 x 0.03 = 6
150 x 0.03 = 4.5
6 - 4.5 = 1.5 is the additional amount of interest.
So marked down 10 then 12 so 10+12=22
mark down total is 22%
100-22=78
78% of 109=0.78 times 109=85.02
tax of 6%
6+100=106%
85.02 times 1.06=90.1212 or about 90.12
90<90.12
no she is short 12 cents
Answer:
yes
Step-by-step explanation:
