On march 3, abc purchased a desk for $450 on account. On march 22, abc purchased another desk for $500 also on account, and then on march 24, abc paid $400 on account. At the end of march, what amount should abc report for desks (assuming these two desks were the only desks they had)? (just type numbers).

Afood web shows who eats who in any given habitat. every living thing, from one-celled algae to giant blue whales, needs food to survive. each food web is a possible pathway that energy and matter can follow through the habitat. a food web begins with producers: organisms that convert sunlight into usable chemical energy. the food web is completed by the decomposers who turn organic wastes, such as decaying plants, into inorganic materials, such as nutrient-rich soil. decomposers complete the cycle of life, returning nutrients to the soil or oceans for use by producers. in this food web, identify the decomposer.

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.

Match each fossil with the layer where it’ll be present based on those conditions.