The population of a city is 100,000 and the annual growth rate is 4.2%. Write an equation to model the population $y$ after $x$ years. $y=$

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Need this asap if anyone can i would be very grateful. if you could show workings that would really