3x + 5y = 5 7x + 5y = 25 what would be x and y for them

Y+ 2/y is it a polynomial in one variable or not? and if so, why?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay

Jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later, she sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions, how much money did jody make?