calculate the volume of the prism by first finding the total number of half unit cubes that will fill it. There are 8 half unit cubes in every unit cube pls help guys this is my exam

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

Ashop has a sale that offers 20% off all prices. on the final day they reduce all the sale prices by 25% linz buys a ratio on the day. work out the overall percentage reduction on the price of the ratio