Write the sum, and then rewrite the expression in standard form by removing parentheses and collecting like terms. 2g and the opposite of (1-2g)

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?