Isabel found 54 coins at the bottom of her backpack. when she looked, she noticed they were only nickels and dimes. isabel counted the coins and they totaled $4.25. how many nickels and dimes did she have?

solve algebraically
use systems to solve the word problem

What is the perimeter of a rectangle if the length is 5 and the width is x?

There are a total of 75 students in the robotics club and science club. the science club has 9 more students than the robotics club. how many students are in the science club?

The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.