9 to the x power=3 to the 40th power

Someone explain how?

Two Alloys of Iron have different percentages of Iron in them. The first of them weights 6 kg and the second one weights 12 kg. One piece of equal weight was cut off from both Alloys.

The sum of the product of a number k and 4, and a number m

What is the value of x? 3x-3

The circumference of a circle varies directly as the diameter. A circle has a diameter of 70 feet and a circumference of 219.8 feet. What is the circumference of a circle with a diameter of 17.5 feet? A. 54.95 feet B. 27.475 feet C. 8.75 feet D. 64.

Evaluate 10x+1 for x=0

Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 37 miles per day. The mileage per day is distributed normally. Find the probability that a truck drives between 166 and 177 miles in a day.

You read a book for 35 minutes. Then you played 4 computer games. Each game took 8 minutes to play. Which steps can you use to find the total number of minutes you spent reading your book and playing games?

What is the value of n?-5n - - 2=27

The growth of a newly identified bacteria can be modeled by G (t) = 100 (1.037) 24t, where G (t) is the total number of cells after t hours. Based on the function, what it is the rate of change?

Suppose the radius of a circle is 5. what is its diameter