There are many penguins on a hill. 53 penguins waddled off the hill. Now 21 penguins remain on the hill. How many penguins were on the hill to start?

74 penguins

72 penguins

32 penguins

34 penguins

jackson's kitten weighed 2 punds and 3 ounces. a month later the kitten weighed 56 ounces. how much weight did the kitten gain in that month

What is smallest number that is divisible by 20,48and 72

Explain why you cannot use the axes of symmetry to distinguish between the quadratic functions

Your family is taking a road trip, and your parents are taking turns driving. If the trip is 600 miles, and your dad drives three times as far as your mom, how far does your dad drive? (Write your answer with units. e. g. 600 miles)

What is the unit rate in dollars per hour 3.5 and $10

Translate the percent word problem in a equation: If 5 is increased to 8, the increase is what percent of the original number?

Explain the difference between 4 times the sum of x and y and the sum of 4 times x and u

Assume that 140 surveys are completed. Of those surveyed, 71 responded positively to effectiveness, 60 responded positively to side effects, and 65 responded positively to cost.

For the first 4 years of a pig's life, the weight w (in kilograms) of the pig approximately fits the formula w (t) = 2 + 14t, where t is the age of the pig in years.

What is the quotient of b/6a and ab/18?