There are 75 students. Yesterday 2/5 of them have their speeches. Today 1/5 of the remaining students gave there speeches. How many students still haven't given their speeches?

Alison has 809.45 in her savings accounts this is 14.95 more than two times the amount Eric has in his account how much money does Eric have in his account

What is circle with diameter with 15cm

The Mariana Trench in Pacific Ocean is about 36,201 feet deep the Puerto Rico trench in the Atlantic Ocean is about 27,493 feet deep draw a bar model to find how many feet deeper the Mariana Trench is than the Puerto Rico trench

A 12cmx2cm rectangle sits inside a circle with a radius of 8cm. What isnthe area of the shaded region of the circle

A bag contains 77 apples and 55 oranges. if you select 66 pieces of fruit without looking, how many ways can you get 66 apples?

How many different ways are there to choose a chairman, assistant chairman, and a treasurer department of 20 people? How many ways are there to choose a committee of 4 people from this same committee?

What's the difference between graphing and equality with a closed dot and one with an open dot

Translate the following sentence into an equation. Use x to represent an unknown number. Do not solve. The sum of twice a number and 19 is equal to five times the number. Write an equation for the given conditions

In 1992, Jason bought a gallon of gas for $1.21. Yesterday, he bought a gallon of gas for $2:16. What is the percentage increase of the price of gallon of gas from 1992 to yesterday.

Horatio needs to rent a car while on vacation. The cost of the vehicle is $18 per day. He gives the office manager $130 up front. What is the account balance at the end of Horatio's nine day vacation?