Which equation are equal to 1/2 (4+8x) = 17? Select all that apply.

2+4x=8.5

4+8x=34

4x=15

2=17-8x

It is estimated that the population of the world is increasing at an average annual rate of 1.3%. The population was about 6,472,416,997 in the year 2005. Write an equation for the population t years after 2005.

51 correct 9 incorrect as a fraction

How do you solve for x when x squared = 9?

Patrick has $50, which is $8 more than twice what Noah has. How much money does Noah have?

The school is planning to add 2 new playgrounds. Each playground will be in the shape of a square that measures 26 m by 26 m. What will be the area of the playgrounds? The area of the playgrounds will be?

If a country's debt-to-gdp ratio is currently 15% and its debt is expected to grow from 2 trillion dollars to 3 trillion dollars in the next 5 years what will the country's GDP have to be in five years to maintain the current debt-to-gdp ratio

Which of the events are mutually exclusive? A. Drawing a card from a deck and getting a king or club B. Rolling a die and getting an even number or a 6 C. Tossing two coins and getting two heads or two tails D.

A model of a volcano has a height of 12 in., and a diameter of 12 in. What is the volume of the model? Use 3.14 to approximate pi, and express your final answer as a decimal.

Simplify the radical expression √ (5) + 6√ (5) A) 5√ (5) B) 7√ (10) C) 7√ (5) D) 5√ (10)

What is the simplified version of this expression: - 8 (-3n+7) - 6