What is 4 8/9 divided by 2/3 in simplest form?

If a =6, what is the value of 2a(3b + 5c)?

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.

Choose the more precise measurement. 26.4 cm or 8.39 cm