Solve the quadratic (^ means to the power of)

N^2 + 21n = 0

4x+7x-12x+9x-11-6 when x = - 1

What is a right angles degree

An athlete eats 45g of protein per day while training. How much protein will she eat during 25 days of training?

Angle a is one ninth as large as its complement angle b

Obesity is a growing public health concern worldwide. Adults with a high body mass index (BMI) of 25 or greater are considered overweight or obese.

Dions grandmother is making a quilt using for small squares put together to form one large Square block how many different blocks can she make using one each of red green blue and yellow small squares show the possible arrangement

10, 26, 8, 2, 17, 2, 9, 23, 22, 2, 16, 19 The range is

Estimate the quotient 157 divided by 24

There are 77 students in the student council. The ratio of girls to boys 7:4. How many girls are there? What is the ratio of girls to students?

The sum of the roots of 8x² - 2x = 1 is: A. - 1/4 B. 1/4 C. - 1/8