Chris is 4 years older than his sister, Cathy. If Chris is 16 years old, write and solve an equation to find out how old Cathy is.

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?

I’m not good at math can i have ? ?