((I'LL GIVE BRAINIEST))Write an expression for the perimeter of the triangle shown below: (4 points) A triangle is shown with side lengths labeled 0.5x plus 9, 3x, and negative 3.4x minus 25.

a
6.9x − 16

b
6.9x + 16

c
0.1x − 16

d
0.1x + 16

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Solve the system of equations. y= 2x y= x^2 - 15

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.