Select the value for “a” that makes this equation true: 45 = 2a +4a + 3

Classify the following triangle check all that apply

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

10% of 1,900,000. show me how you got the answer