(7.40m)^2+100.0m^2

do i square the numbers or is that just for the unit m?

Depends on the context however this appears to be units for area and should be simplified to  107.4m²

Step-by-step explanation:

The answer to this depends on the context. If m represents a variable where an unknown number is then you must square both 7.40 and m in the parenthesis (7.40m)^2. However, from what is written here this is an area expression and the units are meters squared or m². In this case, it does not represent a variable. You should add the areas together since they are the same unit to simplify the expression.

(7.40m)^2+100.0m^2 = 7.4m² + 100m² = 107.4m²

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

step-by-step explanation:

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