How to convert 64 mm to fraction

Initially there are 4 bacteria cells in the sample. Every second, each cell splits into three (triple). After 7 seconds, how many bacteria cells are there in the sample?

When we substitute different numbers for *,

A car travels 50 mph for 10 minutes. How many miles per minute is the car traveling? To the nearest tenth of a mile, how far does the car travel in 1 minute?

the perimeter of a rectangle is 32 centimeters. The length is 1 cm more than twice the width. Find the dimensions of the rectangle.

Chuck lives 4/5 of a mile from the post office. He walked 2/3 of the way from home to the post office. How far did Chuck walk? If possible, write the answer in reduced form

A rectangular cake has a length of inches and a width of inches. How many whole, square pieces of cake with side lengths of inches can be cut from the cake?

A rectangle has a perimeter of 25 meters. If the lengths of the sides of the rectangle are multiplied by 7 to make a new rectangle, what is the perimeter of the new rectangle?

What does it mean to the rise over run when the slope is an integer? A) the rise number is 1 B) the run number is always negative C) the run part of the slope is going to be one D) there will be no slope

At a toy store the children's department has bicycles and tricycles. There are 20 wheels on a group of bicycles each bike has 2 wheels how many bikes are there

Rewrite the equation X^2 - 8x - 9 = 0 so that it is of the form X^2 + bx = c