What solution does this equation have: -2x+5y=10 and -4x+10y=20? a.) the only solution is (5,4) b.) there are infinitely many solutions c.) the only solution is (10,6) d.) there are no solutions

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Maci and i are making a small kite. two sides are 10". two sides are 5". the shorter diagonal is 6". round all your answers to the nearest tenth. 1. what is the distance from the peak of the kite to the intersection of the diagonals? 2. what is the distance from intersection of the diagonals to the top of the tail? 3. what is the length of the longer diagonal?

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?