If you can buy one can of pineapple chunks for $2 then how many can you buy with $10?(WITH PROPORTIONS PLEASE)

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m

5. divide and simplify if possible. √250x16√2x 6. what is the solution of the equation? √2x+13−5=x