Ms. karne oders a total of 350 black, blue and red pens for the school.
-she orders 170 black pens
-she orders 120 blue pens'
which equation can used to find r the number of red pens Ms. krne orders.
thanks pls help with this

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

Francisco's credit card has an apr of 28.98%, calculated on the previous monthly balance. his credit card record for the last 7 months is shown in the table below francisco is trying to figure out what this all means. answer the following questions: what is the total amount that francisco has paid in interest over the 7 months? what is the total amount that francisco has made in payments over the 7 months? how much of francisco's payments have gone to paying down the principal on his account? what is francisco's new balance at the end of month 8? what will francisco be charged for interest for month 8?