Acircular ink spot has the circumference of 25.12 millimeters. a minute later, it has the circumference of 75.63 millimeters

a. estimate the diameter of the ink spot each minute

b. how many times greater is the diameter of the ink spot compared to the previous minute?

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?