Iam a number between 60 and 100 my one digit is one less than my 10 digit iam a prime number what number am i?

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

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t