Amath teacher drove by a playground that was full of boys and dogs. the teacher happened to notice that there was a total of 40 heads and 100 feet. how many boys and how many dogs were there?

Pls brainliest will be awarded if answer is correct

Anita has a success rate of 80% on free throws in basketball. she wants to know the estimated probability that she can make exactly four of five free throws in her next game. how can she simulate this scenario? categorize each simulation of this scenario as correct or incorrect.

Mallory has been offers two different jobs. she can baby sit for 6 hours a week and get $8.50 an hour. or she can work at the library for 14 hours a week and make $5.50 an hour. which job will allow her to save the most money after 6weeks?