Mora was preparing for 3 achievement assessments. she spent 3.6 hours of studying over the weekend. if she spent an equal amount of time studying for each assessment, how much time did she spend on each assessment?

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis