Enter your answers to questions about linear expressions in the boxes. the number of terms in the expression 2x−72x−7 is . the constant in the expression −7x 3−7x 3 is . the coefficient in the expression −x5 2−x5 2 is . the factors of the first term in the expression 7x9−57x9−5 are and . the second term in the expression 4x−784x−78 is . a sea turtle swims at a speed of 27 kmh. a girl swims 14 dm per s. how much faster does the sea turtle swim than the girl in meters per minute? 1 m = 10 dm 1000 m = 1 km enter your answer in the box. mmin a population of bacteria, b, over a given amount of time, t, is modeled by the expression b(1−r)tb(1-r)t . note: r represents percentage rate as a decimal what does each factor in the expression represent? select each correct answer. (1−r)(1-r) represents a growth of the bacteria population (1−r)(1-r) represents a decay of the bacteria population b represents the initial amount of bacteria in the population b represents the amount of bacteria at a given time