a system of three linear equations in three variables is consistent and dependent how many solutions to the system exist

Evaluate the expression x^2+8x-4 if x=3

Jord Problems Lessons 1-1, 1-2 football team was at the 38 yard line. In the next three plays. they lose 6 yards, gain 4 yards, and then lose 7 yards. Use integers to find the yard line are they on now.

What is the sum of prime numbers between 40 and 56

Two buses leave towns 268 miles apart at the same time and travel toward each other. One bus travels 10 miles per hour slower than the other. If they meet in 2 hours, what is the rate of each bus?

Five girls share 4 sandwiches equally. How many fruit bars does each friend get

From a barrel of colored marbles you randomly select 7 blue, 5 yellow, 8 red, 4 green, and 6 purple marbles. Find the experimental probability of randomly selecting a marble that is NOT yellow. Write your answer in simplest form.

After x+1 over 3 minus x+2 over 2x have been combined using the least common denominator of 6x what is the numerator

Steve is 2 years older than cathy, jake is twice as old as steve, kate is twice as old as jake. the sum of their ages is 56. how old is steve

Two more than 5 times a number is greater than or equal to 3

A student tests 100 students to determine whether other students on her campus prefer soda brand A or soda brand B and finds no evidence that preference for brand A is not 0.5.