Na figura, os segmentos BC e DE são paralelos, AB= 20 cm, AD= 8 cm e AE= 6 cm. A medida do segmento CE é, em centímetros:
a) 6 cm
b) 7 cm
c) 8 cm
d) 9 cm
e) 10 cm

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?

Solve 17= -13 - 8x and show your work.

In the next 10 month,colin wants to save $900 for his vacation.he plans to save $75 each of the first 8 months. how much must he save each of the last 2 months in order to meet his goal if he saves the same amount each month ?