Mandy is trying to subtract 5 - 10, and she has asked you for help. How would you explain the process of
solving the problem to Mandy, using a number line? Complete the explanation.
Start at (select) 5 on the number line. Then, move 10 places to the (select) because she is
subtracting a (select number. She will end on the number
which is the answer.

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?