Battery A runs out of energy after 132 minutes. A
Battery B runs out of energy twice as fast.
B
Battery C runs out of energy three times as fast
as Battery B. If used one at a time, what is the
total number of minutes that all three batteries
can provide energy for?

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.