On 1st january 2018 the temperature of delhi at 10 am was 21 degrees c but by midnight the temperature fell down to 6 degrees c. in the same day the temperature of sharjah at 10 am was 26 degrees c but by midnight the temperature fell down to 11 degrees c. which place displayed greater difference in temperature?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

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.

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?