Solve this system of equations using substitution.

a + b + c = 180

b = 3a

c = 5a

How do I solve - 6a>66

Evaluate the expression below when x = 9. 3x + 2x2 - 9 Select one of the options below as your answer: A. 54 B. 180 C. 342 D. 4,365

Identify the gas particle that travels the fastest

Connecticut has about thesame population as iowa but its area is 4875 square miles

Tyler is planning to buy a new car. He intends to trade in his existing car, a 2002 Chrysler Sebring in good condition. Using the table below, estimate how much Tyler's car is worth.

A compound inequality is graphed and its graph consists of real numbers which open sentence could have resulted in this solution set r > 3 or r < - 2 r <3 or r 3 or r> - 2 r - 2

Simplify 7/3+3 (2/3-1/3) squared

Which expression is equivalent to 2x^2-72

Peter flips a coin 50 times. What is the theoretical probability of flipping a heads?

Chelsea has a beginning balance of $715 in her checking account. She writes two checks for $320 and $640. She has a deposit of $400 and an overdraft fee of $29. What is her new balance? $126 $2104 $1094 $184