PLEASE HURRY Solve each system by elimination. Show your work. Write your answers as ordered triples. 4) 6a - 4b - 4c = 30and -5a - 2b + c = 5and 4a + 6b - 2c = -10 its 3 equations first to answer with work and the right will get brianliest

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

Chandler was a caretaker at the state zoo. he noticed that the number of animals adopted by the zoo increased at a constant rate every year since 2010. which of the following graphs shows the slowest rate at which the animals in the zoo were adopted?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis