About how many months have 28 days

The probability that Linda receives spam e-mail is 4 percent. If she receives 520 e-mails in a week, about how many of them can she expect to be spam?

Find the slope between (-3,5) and (4,8)

2. MONEY Hans opens a savings account by depositing $1200. The account earns 3 percent interest compounded weekly.

If cos A=28/53 and sin B=60/61 what is the value of sin (A-B)

Find the polynomial standard form of - 5q^2 (-q-5)

On three examinations, Dana received scores of 84, 89, and 78. What score does Dana need on the fourth examination to raise his average to 85?

You have a Spanish meeting every forth day and a math club meeting every tenth day. Today you have both meetings. In how many days will you have both meetings on the same day again?

5.2 turned into a fraction in simplest form.

A certain laptop is really popular and sells for $199.99. Since sales are so good, the store raises the price by 13%. What is the cost of the laptop after the markup?

Which statement is correct? (2.06 times 10 Superscript negative 2 Baseline) (1.88 times 10 Superscript negative 1 Baseline) less-than StartFraction 7.69 times 10 Superscript negative 2 Baseline Over 2.