In the image, two circles are centered at A. The circle containing was dilated to produce the circle containing 8: What is the scale factor of the dilation?

OA 1 1
OB 2
OC 0.5
OD -0.5

Which formula gives the area of a triangle? a=1/2(b+h)

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

Use sigma notation to represent the following series for 9 terms.