Factor this expression completely ab + 4 + a + 4b

The system of equations y = 1/4x-5 and y = - 1/2x-3 is shown on the graph below. Which statement is true about the solution to the system of equations? The x-value is between 2 and 3, and the y-value is between - 4 and - 5.

The equation of a line is 2 (y+1) = 10x+3 what would the intercept and slope of the line be?

In a group of 30 people, 10 drink milk but not tea 5 drink tea but not milk and 13 drink neither tea nor milk. find how many people drink both tea and milk.

You run 16 laps in 8 minutes. Your friend runs 28 laps in 14 minutes. Are the rates equivalent?

The four partners in a business decide to split the profits of their company in the ratio 2:3:3:5. If the profit one year is $26,000 what is the largest number of dollars received by any of the four partners?

A rectangular prism has a length of 9 inches and a width of 4 inches. The lateral area is 78 square inches. What is the height of the prism?

What is the radius of a circle whose equation is x^2+y^2-10x+6y + 18=0

Suppose that the concentration of a bacteria sample is 60 comma 000 bacteria per milliliter. If the concentration triples in 4 days, how long will it take for the concentration to reach 102 comma 000 bacteria per milliliter?

Andrew wants to place grouping symbols in the expression 15 + 25 - 18 : 2 so that it has a value of 18.5. Which shows the correct placing of the grouping symbols? A. (15 + 25) - 18 : 2 B. 15 + (25 - 18 : 2) C. 15 + (25 - 18) : 2 D.

The entrance fee for Mountain World theme park is $15. Visitors purchase additional $2.25 tickets for rides, games, and food. The equation y = 2.25x+15 gives the total cost, Y, to visit the park, including purchasing X tickets.