Who is good at the maths/ algebra? ?

which answer is a solution to the open sentence
8 < 2b or 2b + 15 < 5

a. b > - 3 or b < 4

b. b > 4 or b < -5

c. b < - 2 or b> 3

d. b > - 1 or b< 3

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?

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?