Math sentence made up of numbers symbols and operations

An equation is a math sentence made up of numbers, symbols, and operations that has an equals sign and a correct answer.
For example:

7y + = 6

An inequality is a math sentence made up of numbers, symbols, and operations that has an inequality symbol.
For example:

7 + u > 5x

An expression is a math sentence made up of numbers, symbols, and operations.
For example:

4h + 77 (5 - )

Hope that helped! =)

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post