Which expression is equivalent to 6(4c + 5) + 7?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?