Ayard in the shape of a square measures 18 ft. on each side. a triangular area with a height of 4 ft. and a base of 9 ft. is dug up for a flower bed. how many square feet remain in the yard?

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

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