1. x= (3x - 2) (10x – 11) (3x + 1)
this is a question on my homework that I dont really understand how to do, each is an angle on what looks like a isosceles triangle,
could you help me find the answer and how to do the equation for future ones?

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths