Examine the system of equations.

x + 3y = 7,

2x + 4y = 9

Which variable would be the most efficient to solve for?

x in the first equation

y in the first equation

x in the second equation

y in the second equation

Four universities-1, 2, 3, and 4-are participating in a holiday basketball tournament. In the first round, 1 will play 2 and 3 will play 4. Then the two winners will play for the championship, and the two losers will also play.

What is 3 3/4*2 4/5 in simplest form

What is the sum of a 54-term arithmetic sequence where the first term is 6 and the last term is 377?

Two tankers contains 850 liters and 680 liters of petrol respectively. find the maximum capacity of tankers which can measure the petrol of either tankers in exact number of times

A teacher has 27 students in her class she asks the students to form as many groups of 4 as possible how many students will not be in a group?

Maya visits the movie rental store. On on wall, therear 6 DVDs on each of 5 shelves. On other wall, there are 4 DVDs on each of 4 shelves. How many dvds are there all?

A universal set contains only sets A and B. If A∩B = Ø and A and B are not the empty set, then all of the following are true except A and B are disjoint. A is equal to B complement. A∪B={} A is not a subset of B.

What is 4 (2y+5) + (-6-4y)

A man invests $5000 in an account that pays 8.5% interest per year, compounded quarterly

The rectangle shown has an area of (y^2+8y+15) m^2 what is the width of the rectangle