Prove that there has to be a common prime factor for the following expression to be true (or provide a counter-example):

A^x + B^y = C^z

Describe four different subsets of a real numbers.

Evaluate f (x) = 4x+1 when x=-1, x=0, and x=3.

A class of sixty voted for class president. 30% voted for brad and 70% voted for Jane. How may votes did the winner get?

This is dot plot shows the number of cakes sold each day in aunt alices bake shop oats month. What is the median number of cakes sold each day

The perimeter of a square is equal to the circumference of a circle with a radius of 10 cm. What is the area of the square? (Round to the nearest tenth.)

Is 5 meter and 6/5 greater than 5 meters 5 5/6 show how

How many times does 21 go into 221 evenly

A common inhabitant of human intestines is the bacterium Escherichia coli, named after the German pediatrician Theodor Escherich, who identified it in 1885. A cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes.

4 friends shared a pizza dinner. The cost of the meal was $38 including the tip. If they shared the cost of the meal equally, how much would each of them pay?

Kathy works two part-time jobs for a total of 23 hours a week. Job A pays $5.70 per hour, and Job B pays $7.00 per hour. How many hours did she work at each job the week that she made $146.70? (Round to two decimal places if necessary.)