What does : mean in math terms?

Jackie earned $15 babysitting. she went to the movies the next night and spend $10. her brother paid her back $4 the next day she went shopping and spent $8 how much money does Jackie have now

When measuring length 9 butcher knives are approximately equal to 16 steak knives. how many steak knives are equal to 63 butcher knives? how many butcher knives are equal to 48 steak knives?

Find an ordered triple to represent a in the equation a=2g-5f if f = (1,-3,-8) and g = (3,9,-1)

A company builds computers. it cost $6700

The length of a rectangular boat storage shed must be 4 meters more than the width, and the perimeter must be at least 100100 meters. what is the range of values for the width?

In a certain elementary school, 52% of the students are girls. A sample of 65 students is drawn. Would it be unusual for more than 70% of them to be girls? Clearly explain your reason. (Note that your random variable is the sample proportion).

Colleen says she is thinking of a 4 digit number in which all the digits are the same the value of the digit in the hundreds place 200 describe the relationship between the values of the digits in the number

You have $37 when you get to the mall. You need to save $3 for bus fare to get back home. Which inequality represents the amount of money, m, you can spend? A. 37 - m > 3 B. 3 < m + 37 C. 37 - m ≥ 3 D. m ≤ 37 + 3

Q1: A bag contains 41 balls. There are 28 red balls which are numbered 1 to 28 and 13 white balls which are numbered 29 to 41. If a ball is chosen from the bag at random, what is the probability of the ball being red and having an even number? CH

A vendor sells three types of watches. Of the watches in stock 20% are mens watches, 40% are ladies watches and the rest are childrens watches. There are 250 all together how many childrens watches are there math