Please help

The numbers of pens sold on Monday, p, increased 45% on Tuesday. The expression. p + 0.45p represents the number of pens sold on tuesday. What is another expression that can be used to find the number of pens, p, sold on Tuesday

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Which are the possible side lengths of a triangle?

Module 2 homework: descriptive statistics 40206 module 2: homework 56 randomly selected students were asked how many siblings were in their family. let x represent the number of pairs of siblings in the student's family. the results are as follows: # of siblings 1 2. 4 10 frequency 13 6 10 10 round all yeur answers to 4 decimal places where possible. the mean is: the median is the sample standard deviation is the first quartile is the third quartile is: what percent of the respondents have at least 3 siblings? % 83% of all respondents have fewer than how many siblings?