Post-test you estimate that there are 48 marbles in a jar. the actual amount is 36 marbles. find the percent error

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so