If there are 400 hundred 0 tens and 10 ones what number is represented?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples