X^4-x, x^2+x+1. is find out the highest common factors.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.

I’m still confused on how to work the percentages