What do the double brackets with an x in the middle mean?

What is the answer so I could get the question

Distributive Way - 4/5 * 1 1/2

The yummy ice cream company wants to package ice cream in cylindrical containers that have a volume of 5453 cubic centimeters. The marketing department decides the diameter of the base of the containers should be 20 centimeters.

How do you write the standard number 215,500 in scientific notation?

There are 50 seashells on the beach after one week there are 120 seashells on the beach if this continues the same patterns how many seashells will there be on the 4th week

2 numbers whose sum is 832

Marco estimated that he took his dog on a 2.5 mile walk. When he drove the same route in his car, he found out that it was 2.65 miles. What is the percent error between Marcos estimate and the actual amount?

What are the earnings for: 1. 5 days at $69.00 a day = $ a0 2. 3.5 days at $27.75 a day = $ a1

Rationalise the denominator. 2+square root of 2 divided by4 minus the square root of2

The ratio of boys to girls at Greenville High School is 4:5. If 300 girls go to high school, the equation x 300 = 4 5 can be used to determine the number of boys, x, that go to the high school.