Consider the following autonomous first-order differential equation. dy dx = y2 − 3y find the critical points and phase portrait of the given differential equation.

Find the solution of system of equation y= x-4 y=4x+2

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

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?