Frank raked 23 of his lawn yesterday and 16 of it the day before. How much of his lawn did Frank rake over the course of the two days?

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

In parallelogram abcd the ratio of ab to bcis 5: 3. if the perimeter of abcd is 32 find ab

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective