A teacher randomly assigns the 20 students in her class to study groups, each with 5 students. if there are 10 boys and 10 girls, what is the probability that two of the study groups have all boys and two have all girls?

Adrian sells handmade puppets for $10 apiece. One puppet gets damaged, so Adrian sells it for $6, resulting in a loss of $4. He asks his assistant to enter the loss in the account book. What should the entry be? Type your answer as a numeral.

Antonio gave 27 tomatoes to his neighbor and 15 to his brother he had 72 tomatoes before giving some away how many tomatoes does Antonio have left

What is 39.51 rounded to the whole second?

Rosa is thinking of a number between 9.04 and 9.15 that has a 6 in the hundredths place. What is the number? Explain.

The population density of a city is 121 residents per square mile. there are exactly 4,205 people that live in the city. what's the area of the city

find the values os a and b so that the polynomial x3+10x2+ax+b is exactly divisible by (x-1) and (x+2)

You do 4 loads of laundry each week at a launderette where each load costs$1.25. You could buy a washing machine that costs $400. Washing 4 loads at home will cost about $1 per week for electricity.

What is two multiplied by two

A group of 65 baseball players were surveyed about which hand they favor for batting. The data from the survey are shown in the Venn diagram. Determine the value for each variable in the two-way table. it a=28

John skied cross country for 12 miles at 3 miles per hour. He finished skiing at 2:00 p. m. Which explanation correctly tells how to calculate what time John started skiing? A. Step 1 Divide: 12 : 4. Step 2 Add the quotient to 2:00 p. m.