John opened a savings account with $400. He plans to save $40 per week from his paycheck Which equation would represent his
total balance, y, after x weeks of saving?
X= 40y + 400
y = 400x + 40
y = 40x + 400
y=x

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)

What is the product? (x2+3y+7) [yy+1)

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?