Algebra Answers

Solve the formula for the specified variable.
V = 1/3πr^2h; h (geometry)

I need an example for:
The sum of four times a number and 13.

Need this explained step by step:
1/2x - 7 > -8

Need this explained step by step:
3x - 4 < 2

Need this exampled step by step
1/3 ( 6f + 9 ) + ( 5f + 6 )

A man 5 year older than his wife who is ten times as old as her daughter.If the daughter attains the age of 8 in three years what is age of man.

There are 30 students in Ms. Yadav's math class. Today in math class, 16 students are wearing sneakers, 10 are wearing boots, and 4 are wearing other kinds of shoes. What fraction of Ms. Yadav's students are wearing boots?

10 people are seating on chairs around a circular table. These chairs are marked
in a clockwise manner. There is a ball on the man’s hand who is seated on 0
marked chair, and the ball will be passed from one man to another in clockwise manner.
In first step, the ball goes to 1 marked chair with 1 turn. In second step, from there, the
ball goes to 5 marked chair with 2^2
turns. In third step, the ball goes to 2 marked chair by 3^3
turns from 5 marked chair. By this means, in which chair the ball will be in 2017^th
step?

Four students spent $12 on school lunch. At this rate, find the amount 10 students would spend on the same school lunch

What year is it now if century plus a score plus a decade plus a year ago was 1856?