Areal estate developer is looking to find fund a new condo complex. he promises 145% return on investment in four years. if youre interested in investing $30,000 and the developer follows through on his promise, how much money will you get back in four years?

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?