Answer:
False
Step-by-step explanation:
there is 3 ways
decimals
fractions and
percentages

You get this by switching the f(x) and the x and then solving for the new f(x)
let's say the two numbers are x and x + 9. so we know x + x + 9 = 21, so 2x + 9 = 21. subtract 9 from both dies to get 12 = 2x. divide both sides by 2 to get x = 6. so your two numbers are 6 and 15.
Answer:
Sorry I don't know this answer
Answer:
Step-by-step explanation:
399*42%= 167.58 the mark up amount
399+167.50=566.50 total