How do you write 300,000,000+40,000,000+7,000,000+30 0,000+10,000+6,000+20+9 in standard form

What is the value of x? 3x + (6x - 6) = 4(2x-2)

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.