Name the property the equation illustrates.
9 + (8 + 1) = (9 + 8) + 1
a) commutative property of multiplication
b) associative property of addition
c) commutative property of addition
d) inverse property of addition

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?