Can someone help me with this question???

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9