Which statement shows the associative property of addition? 3⋅ (5⋅x) = (3⋅5) ⋅x 21 + 2y = 2y + 21 (u + 7) + 13 = u + (7 + 13) If m + 3 = 18, then 18 = m + 3.

In Mrs. Garrett's English class, 80% of the students were present last Thursday. she had 20 students in class Thursday. What is the total number of students enrolled in her class?

Phillip has $2,000 and spends $23.75 on supplies. He divides the remaining amount equally among his employees. How much does each employees receive

The equation T^2=A^3 shows the relationship between a planet's orbital period, T, and the planet's mean distance from the sun, A, in astronomical units, AU.

What's the answer 4m-4=4m

1 gallon weighs 8.34 pounds, how many ounces per gallon is the water

A city known for it temperature extremes started the day at - 5 degrees farenheit. the temperature increased by 78 degrees farenheit by midday and then dropped 32 degrees by nightfall

Given: If a parallelogram has 4 congruent sides, then it is a rhombus. In Parallelogram ABCD, AB = BC = CD = DA What can you conclude? A) ABCD is a square B) ABCD is a rhombus C) ABCD is a trapezoid D) ABCD is a rectangle

The perimeter of a rectangle is 24 meters and it's length is 3 times the width. What is the length and width of the rectangle

Emily biked 9 miles in 3/4 hours. Which expression can she use to find her unit rate in miles per hour?

The perimeter of the triangle is greater than 14 yards and less than 17 yards. Which inequality represents the possible values of x?