If angela can ride her bike 3 miles to school in 15 minutes how long will it take her to ride 20 miles to the beach?

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Yvaries inversely as x. y =12 when x=5. find y when x=4