Evaluate: -ab-a if a= -4 and b= -5 (a)-24 (b)-16 (c)24 (d)25

-ab-a=-(-4)(-5)-(-4)=-20+4=-16

so the answer is b

b. x- 48 =120

step-by-step explanation:

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)