Beverly has a bag of marbles that weighs 30 grams. She knows that each marble weighs 1. 5 grams and the bag weighs 1. 5 grams. Which equation could she use to determine how many marbles are in the bag? select all that apply. (1. 5)x + 1. 5 = 30 30 – x = 2(1. 5) (1. 5)(30) = 1. 5x 1. 5 + x = 30 1. 5x = 30 – 1. 5.

Certification programs are offered by all of the following except

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.

Anna’s mother prepares sauerkraut, a fermented dish made from finely cut cabbage and salt. lactobacillus bacteria present on the surface of the cabbage combine with salt to turn the cabbage into a crunchy, sour dish. what chemical process occurs to create this dish? a. alcoholic fermentation b. cellular respiration c. conservation d. lactic acid fermentation e. photosynthesis