John is 4 years older than his sister Mary. Together, their ages add up to 30. How old is Mary?

Tony wants to estimate the number of bees in a beehive. He catches 100 bees from the hive and marks each one with a dye. He then lets the bees go. The next day, tony catches 60 bees from the hive. 15 of these bees have been marked with dye.

Line a passes through (-1, 1) and (1, 3)

A fruit basket contains 6 apples and 8 oranges. Sarah randomly selects one, puts it back, and them randomly selects another. what is the probability that both selections were oranges

Evaluate for M = 10, N = - 5, and P = - 2

Which expression is equal to 54⋅58? 512 54 52 5-4

Factor completely 6xy^3-24x^3y

Use the rules for multiplication by powers of 10 to calculate 3 times 100

How do you solve k in V = 3k/t

Whats 100 times 1,002 times 54

Kofi has 4 meters of fabric that he wants to cut into 5 equal-sized pieces. What is true about the length of each piece of the fabric?