The population of Houston was 1,900,000 in 2000. It grew to 2,100,000 in 2010. Find the percent of increase.
a. 10.5%
b. 20%
c. 21%
d. 40%
plz help will say branliest

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

Explain how you can use the associative property to evaluate (7x50)x4.

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?