If 2x + 1 =4 , find 12x

a) 12
b)10
c)16
d) 18

Please help show me how to solve this

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?