Factorize 10x3y2+5x3y3-15x4y5

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)