How to tell if an equation has no solution without solving?

200 kids came to a fundraiser. He found out that 60 people like rap. What percent of people like rap?

Choose the correct simplification of (6x - 5) (2x^2 - 3x - 6) 12x3 + 28x2 + 21x + 30 12x3 - 28x2 - 21x + 30 12x3 + 28x2 - 21x + 30 12x3 - 28x2 - 21x - 30

What is the lowest price per item? $6 for 3 $9 for 6 $10 for 8 $1.40 each

The blueprint has a scale of 1 inches : 4 feet. A wall in the same blueprint is 28 inches. How long is the actual wall?

Mrs. Baca uses a phone card to call her relatives in Colombia. It costs her 45 cents to talk for 15 minutes. What is the call rate for the phone card? Show your work.

Ronald and Tim both did their laundry today. Ronald does laundry every 6 days and Tim does laundry every 9 days. How many days will it be until Ronald and Tim both do laundry on the same day again?

Function f is an exponential function. x - 2 0 2 4 6 f (x) 1/64 1/16 1/4 1 4 By what factor does the output value increase as each input value increases by 1?

Each side of a square is increased 7 inches. when this happens, the area is multiplied by 4. how many inches in the side of the original square?

Fred's dog groomer charges $25 to give his dog a haircut. The groomer is increasing the price for a haircut by 35%. What will Fred pay the groomer the next time his dog has a haircut?

Which is smaller - 0.145 or - 0.072