Heyyy!! I could really use some helps this is really stressing me out and I wonder if anyone could explain this to me

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?