42:
The variable x represents a value in the set {4,6,7,8}. Which value of x makes 2(x−4)+3=7 a true statement?

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x