Triangle angle I need help with problem 4,5,6,7,8 4, 123degrees 5x+3
5, 120 degrees 152 ,6s+2
6, 49 degrees 82, 3n+1
7, 107 degrees 52, 2a+1
8, 111 degrees 147, 4v

Which of the following are parts of a sphere

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.