Twice the sum of a number and 5

It's the 10th day of autumn and the first leaf has fallen! If the number of leaves on the ground is quadrupling with each passing day, what is the total number of leaves that have fallen to the ground by the end of the 18th day of autumn?

If your mother has 3 cows how many cows do you need to make 5 cows

Que sucesiones van de 2,7,8

I am a quantity that can change or vary, taking on different values. Who am I?

Find the constant variation when t varies directly as the square root of s, and t=64 when s=4

Give an example of a real number that is not rational

Tyler baked 702 cookies. He sold them in boxes of 18. After selling all of the boxes of cookies for the same amount each, he earned $136.50. What was the cost of one box of cookies?

Juan selects 2 colored pencils randomly. There are 4 green, 3 yellow, 4 red, 3 blue and 2 orange. What is the probability Juan chooses a red, replaces it, and then chooses an orange? A: 1 over 32 B: 1 over 30 C: 8 over 225 D: 3 over 8

How do you find the lcd

Process of substitution y=2x-4 4x+5y=22