3/7 of a number is 15, what is the number

Find the resultant (sum) of the complex numbers. Express in rectangular form a plus b i. 3 - 12 i, - 7 + 2 i

Sally drives 66 miles in 3 hours and Molly drives 72 miles in 4 hours. What is the difference between their average speed, in miles per hour? A. 4 B. 6 C. 18 D. 22 I will mark brainiest

Convert 5 months to years using 360-day year

How much water must be added to 5 qt of a saline solution that is 20% salt in order to reduce it to 15% salt?

Find two consecutive whole numbers that square root 116 lies between

Tan (x) = 2 Solve for x. Round the answer to the nearest tenth.

The expression 5/9 (F - 32) shows how to convert from degrees Fahrenheit to degrees Celsius, where F represents the temperature in degrees Fahrenheit. What is the temperature in degrees Celsius when the temperature is 113 degrees F?

Simplify the remaining expression completely x^6y^4/xy^2

Greatest common factor of 8x and 40?

A small factory can produce 245 sofas each day or 315 overstuffed chairs per day. the workers produced 8,820 pieces of furniture to fill an order. if they built sofas for 18 days, how many days of production were needed to build the chairs?