Stacy is saving $5 each week to buy a new bike. she already has 15 dollars saved in her bank account. she needs to save at least 75 dollars in order to buy a new bike.

What is the missing constant term in the perfect square that starts with x^2 -20x

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?