Which equation represents a line which is perpendicular to the line 5y-4x=-15 5y−4x=−15?

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?

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.