Evaluate the expression when b=-6 and x=5 x-4b

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.