Answer:
$41.9
Step-by-step explanation:
divide $62.85 and get 20.95 which is 1/3 of it so then you just subtract $20.95 from $62.85 and get 41.9
Answer:
24
Step-by-step explanation:
You input will always be your x so you just substitute x with 10 and simplify. Which is 30 minus 6, thus 24. :)
Its a 50%-50% chance that you will be able to pick a red and blue marble without noticing....
You just need to plug those expressions inside the formula: it doesn't matter if they're expressions involving a variable instead of plain numbers: the formula becomes

If you want, you can simplify it by expanding the square and then multiply the two parenthesis:

256*16 is the correct answer here.