Pick more then one below each 1-3 help me out please 1.
A. (2x - 1)(x+9)
B. (2x - 1 (x-9)
C. x+7
D.3x(x-9)

2.
A.3x(x+7)
B.3x(2x+1)
C. x-7
D. x+7

3.
A.-0.5
B.-7
C.0.5
D.9
E. 0​

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

What is the distance from (–3, 1) to (–1, 5)? round your answer to the nearest hundredth. (4 points) a. 3.60 b. 4.12 c. 4.47 d. 5.66