Express each fraction as a percent .round to the nearest whole number 178 over 450

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

In the diagram, gef and hef are congruent. what is the value of x

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)