How many solutions does the following system have? Please explain your answer in 1-2 sentences. 4x + 5y = 13
12x + 15y =39

Kelly is three years younger than her sister. the sum of their ages is 34 years. how old is kelly and how old is her sister?

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.