Why is the sum of two odd numbers always even?

19y-15y=20 whats the answer to y

What is the simplified form of (6 to the 2nd power + 4) - 15

A rectangle has a perimeter of 68 yards and a height of 5 yards. What is the length of the base?

H (x) = -0.5x^2+10x+20 What is a word problem that can be for this equation And what are the: x and y values, x and y intercepts, the vertex, and domain and range?

Subtract. 405,000,000-1.7*10^8 (A) 2.35 (B) 2.35*10^7 (C) 2.35*10^8 (D) 2.35*10^9

The vet says that we nice puppy will grow to be at least 27 inches tall. Lena's puppy is currently 1 foot tall. How many more inches will the puppy grow? The puppy will grow a.) at least 2.) at most? Inches

Your brother traveled 117 mile in 2.25 hours to come home for school break. what is the average of speed that he was traveling?

A company's sales decreased by 8% this year, to $9015. What were their sales last year? (Round your answer to the nearest penny.) My answer was 9,736.2, but the correct answer was 9798.91. Could someone explain how did they get to 9798.91?

Cindy exercise for 30 minutes 2 times a day. if she keeps up this schedule for 30 days, how many minutes will she exercise in all

Is pie to the power of 2 greater than 9