George has a table tennis ball that is 4 centimeters in diameter What is the surface area of the ball?

A 4x square centimeters

B 8 square centimeters

C 161 square centimeters

D 32x square centimeters

What is another way to write this number? 300 plus 70 plus 5/10 plus 8/100

1.6 hours to 0.95 hours

Factorise the following expression: 40 gr2 + 15rw

What is the final amount if 2162 is decreased by 3% followed by a further 3% decrease? Give your answer rounded to 2 DP.

Suppose the side length of a square A is 12cm and the side lengh of square B is 10cm. What is the area of square c If the three squares form a right triangle

Use the formula F=1.8C+32 to convert - 20° into fahrenheit.

Solve in the correct order: (-3 - 4) / - 9 A) - 7/-9 B) - 7/9 C) 7/9 D) - 1/9

Suppose a lab needs to make 400 liters of a 39% acid solution, but the only solutions available to the lab are 20% acid and 50% acid.

If the price is $40, the number of units sold is 450, and the average cost is $33, what is the profit?

Kevin borrowed $8000 at a rate of 9.5%, compounded quarterly. Assuming he makes no payments, how much will he owe after 6 years? Do not round any intermediate computations, and round your answer to the nearest cent.