How do you find the power of 13 in your head

a businessman bought a refririgeratior for 45,638 he then sold it and made a 15% profit on the cost price. what was the selling price?

Name the property shown by the statement. 3 (x + 7) = 3x + 21

What is negative 9 times negative 6

Evaluate (3.2) * 2 - (4.8) * 2/3.2+4.8

1. Which is the same as 10^-3? A) 0.0001 B) 0.001 C) 3 2. Which is the same as 10^-2? A) 0.0001 C) 0.01 D) 100

The East-Side soccer team has a cylindrical water cooler that is half full. The diameter of the cooler is 12 in. and the height is 15 in. The team's drinking cups hold 20.14 in3. How many drinking cups can be filled from the cooler? Use 3.

Need answer fast! Using the distributive property and combining like terms 4 (x-3) + 2

What is 128 hundredths written as a decimal?

Which expression can be used to convert 22 Australians dollars to US dollars? Assume 1.2 Australia dollars equal 1 US dollar

How do I solve b-9+6b=30