A hailstone weighs 2.2 pounds. which is more appropriate to express its mass, 1 kilogram or 1 gram

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

Give all possible names for the line shown.calculation tip: lines can be written with either point first.