How can you find 4 x 754 using two different methods

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

What is the solution to the equation below? 3/x-2+6=square root x-2 +8