How many solutions does the following equation have?

5x+8-7x=-4x+15x+8-7x=-4x+1

you are given eight golf balls. Seven of the golf balls have the exact same weight, but one ball is slightly lighter (you cannot feel the difference). How can you find the lighter ball in only two weighing? Explain.

A weather balloon is at an altitude where the temperature is 3 degrees Celsius. The balloon ascends 900 ft with a decrease in temperature of 5 degrees Celsius. The balloon then ascends again with a decrease in temperature of 3 degrees Celsius.

Identify the scale factor if the length of a model train is 36 inches and the length of the engine itself is 24 feet?

Systems of equations y=x^2+1 y=x+1

What is the amount of change from 20 to 36

The diagonals are each twice the length of a side. True or false

Check: 4-8-7 4. K + 3 = - 12

Davis notices that his hair is decreasingly exponentially at a rate of 10% per year. If he starts with 100,000 on his head, how many will he have after 3 years?

Name all of the sets to which the real number 78 belongs. Diagram of overlapping ovals. The largest oval is titled rational. It contains the fractions two-fifths and one-third. The next biggest oval is titled integers.

454,493 rounded to the nearest thousand