51 is 85% of what number?

A) 1.67

B) 51

C) 60

D) 43.35

What is required for two triangles to be similar?

Sendo a = {1, 2, 3, 5, 7, 8} b = {2, 3, 7} indique qual é o completar de b em a?

5 (x-4) + 3x-9x+7 rewrite subtraction as addition

Melanie wants each guest to have the same amount of cake. If there are 54 guests at the party, what should the dimensions of the cake be so that everyone gets the same amount of cake?

Johnny ran 20 laps around a circular field. If he covered a distance of 3265.6 metres, what is the radius of the circular field?

We mathematical induction to prove the statement is true for all positive integers n. 8+16+24 + ... + 8n=4n (n+1)

How do we know that it's a parallel line

The Rivera family drove 267.9 miles from their home to Cape Cod, Massachusetts. They used 9.5 gallons of gas. How many miles per gallon of gas did they get on the trip?

What is the product? - 3 4 2 - 5 3 - 2 1 0

Sahir took 1 h 22 min to do his english homework 45 min to do his maths homework, and 10 min to do his urdu. How long did he take to complete all his homework?