Write the sum, and then rewrite the expression in standard form by removing parentheses and collecting like terms. 10w +3 and –3

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?