Ahot air balloon descends 42 feet in a matter of 30 seconds. write an integer to represent the change shown with the hot air balloon.

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.

Simplify the expression. -2/5(10+15m-20n)

Does anyone know how to do geometryme with this problem