What is 7.3 = y + 2.8

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

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?