Riley is trying to solve the following puzzle
to solve the following puzzle: I am a 2 digit number. The difference of 9 times my first
digit and 2 times by second digit is 10. My second digit is twice as by
ang is 10. My second digit is twice as big as my first digit. What number
am i? To solve this. Riley created the following system of equatons.

Sara has been reading about different types of financial grants, including federal pell grants, academic competitiveness grants, smart grants, and teach grants. which statement about these grants is true? filling out a fafsa will not her apply for these grants. she will not have to pay back any funds she receives from these grants. these grants only go to students with less than a 3.0 gpa. she will have to pay back all the funds she receives from these grants.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

Solve for x where 0 equation: cot^2x+2cotx+1=0