There are 8 counter seats available at a burger shop Alex and Brook goes to eat there, but ended up fighting right before meal. In how many ways
can they sit at the counter so that there is at least one seat in between them?

Which graph corresponds to the function f(x) = x2 + 4x – 1?

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