Iam a number between 60 and 100. my ones digit is two less than my tens digit. i am a prime number. what number am i ?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Find dy/dx using implicit differentiation ln(20+e^xy)=y