1+ tan^2 theta / sec theta + 1 =sec theta

Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50