If 25% of 7th grade have pets, and there are 40 students with pets, how many total students are in the 7th grade?

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

What is the first step of an indirect proof of a number that is divisible by two

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.