16) Expressions can include both variables and numbers. Their values can also be described using words. Choose ALL expressions that are correctly described in words. A) 2a + 7: the sum of twice a and seven B) 8d + 6: six times d then increased by eight C) c d − 10: ten more than the quotient of c and d D) a3 + 6: a raised to the third power, then increased by six E) 5 ÷ a + b: the quantity of a plus b b divided by five

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

Which ecosystem best fits the characteristics listed below? which ecosystem best fits the characteristics listed below? ii. seasonal migrations of millions of wildebeests, zebras, and elephants iii. large numbers of predators, such as lions iv. acacia trees and grasses a. the congo rainforest b. the african mangroves c. the serengeti grasslands d. the sahel

Select the correct answer.look at this nineteenth-century illustration of london. which explanation best relates this illustration to changes in britain in the 1800s? a.factory workers in cities lost their livelihood because of the lack of housingb.industrialization narrowed the inccome gap between landowners and workers.c.the migration of workers from rural to urban areas resulted in overcrowded citiesd.the spread of railways allowed farmers to sell produce far from where it was grown.