How 2.9-20.9=1.8 explain why this is not reasonable

A wall is 12 feet long and 8 feet tall. There is a square window 4 feet long in the wall. What is the area of the wall surface? A. 96 ft2 B. 92 ft2 C. 80 ft2 D. 32 ft2

What is 15.062 in word form

You and your friend are standing back-to-back. your friend runs 16 feet forward than 12 feet right. at the same time, you run 12 feet forward and then 9 feet right. you stop and throw a baseball to your friend, who catches it.

What is the domain of the functionf (x) = sqrt 9x? all real numbers all real numbers greater than but not equal to 0 all real number less than or equal to 0 all real numbers greater than or equal to 0

15% of 15 is what number?

1/5[10-5 (x-2) ]=1/10 (x+1)

Density is a physical property of elements. Write the density formula below

The ratio of the volumes of the two spheres is 27:343 and the sum of their radii is 10 units. Find the radius of the smaller sphere.

A chemistry teacher needs to make 10 L of 36% sulphuric acid solution. The acid solutions available are 30% sulphuric acid and 50% sulphuric acid, by volume. How many litres of each solution must be mixed to make the 36% solution?

Two lines intersect to form a linear pair with equal measures. One angle has the measure 3x° and the other angle has the measure (9y - 18) °. Find the values of x and y.