You hammer a nail into a tree trunk 10 ft above the ground (and the tree is currently 20 ft tall). The tree grows taller at a rate of 2 feet per year. How far above ground level will the nail be in 10 years

The nail would be 30 feet above the ground in 10 years.    

Step-by-step explanation:

We are given the following in the question:

Height of nail = 10 feet.

The tree grows taller at a rate of 2 feet per year.

Thus, the height of nail can be represented by a linear function:

where t is the number of years.

We have to find the height of nail in 10 years.

Putting t = 10, we get,

Thus, the nail would be 30 feet above the ground in 10 years.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons