What is the answer ???

What is the standard form of -5x^2+2x^4-11+x^3+3x

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

Will mark the brainliest.paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?