For what value of x is the expression 2x-1/x+3 not defined

Pauline is going to buy grey parrots ($300 each) and blue lovebirds ($20 each) for the store. She wants 10 birds total. She has $1040 to spend. How many of each type of bird should she order?

Jamie has a job paying $25,000 and expects to receive a $1000 raise each year. Wei has a job paying $19,000 a year and expects a $1500 raise each year. For what span of time is Jamie making more money than Wei?

Is - x^2 = 0 a quadratic equation?

Cough medicine, which is regularly $4.60, is on sale for one-fourth off. What is the sale price?

To get a grade of c in your course you must average at least 75% on 4 exams. you have taken the first three exams and gotten scores of 68,78, and 81. what must you score on the last exam to get a c or better

Solve ln (5x+18) = ln (12x+4)

Chloe gets paid $8 per hour to work as a lifeguard. This weekend, she worked on both Saturday and Sunday. She made a total of $72. Chloe worked for 4 hours on Saturday, For how many hours did she work on Sunday?

Evaluate 6t - 20 - 32u when t = 6 and u = 1/4

Write an expression to match the words. (12*2) + (4*3)

What is the expanded form of 3x (x+3) ^2?