Are you even in middle school or high school?lol
Answer:
3x=total amount of money, 3x
Step-by-step explanation:
Because the number of notes books is the same (x and x), you can simply add them.
Basically, the equation is 1x+2x= total cost but you can add 1x and 2x because they have the same variable
The prime factorization is 5 * 17<span />
Answer is 6.88 cm
Divide the pentagon radially into five congruent, isosceles triangles. Each triangle has a vertex angle of 360°÷5=72° and altitude of 5÷tan(36°).
radius of circle = 5÷tan(36°) = 6.88 cm