Cold stone charges $3.50 plus $0.75 per topping

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

Empty box + box + empty box fill in the box is equal to 30 how

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show