What is the equation of the midline for the function y = 2sin(x - π) + 3

y = π
y = -π
y = 3
y = -3

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

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?