Sam is is mixing chemicals during a chemistry lab. she adds a 60% acid solution to 10 ml of a solution that is 10% acid. how much of the acid solution should sam add to make a solution that is 50% acid? show work.

Which of the binomials below is a factor of this trinominal? x^2-13+30

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Add the fractions and simplify 1/2+ 1/3