Use the linear combination method to solve this system of equations. What is the value of x?

3 x + 7 y = 31. Minus 3 x minus 2 y = negative 1

A circle has the equation x2 + y2 = 9. What is the length of the radius?

Adam has been asked to post a parcel for a family member. He has been told that the parcel weighs 12lbs 8oz. How much does the parcel weigh to the nearest whole kilogram

How many degrees does the minute hand turn to get from 12:00 to 12:05

Use a proportion to solve the problem. Round to the nearest tenth as needed. A tree casts a shadow 39 m long. At the same time, the shadow cast by a 43-cm tall statue is 62 cm long. Find the height of the tree.

Baby Ethan wants to arrange 4 blocks in a row. How many different arrangements can he make?

Convert 3/4 into a quotient and percentage

Simplify the expression 3 (-3y+2x) combine like terms a+3a-b+4b+c

If a figure has 5 sides 5 vertices and no equal sides what is it? it is a polygon BTW

If I rent a boat for $25 per hour and a charge additionally $12 for fuel is the number of hours I rent the boat proportional to the total cost

90,88,88,87,84,95,90,80,98, and 100 (A) find the mean of these numbers (B) find the median of these numbers