I don't get it because it is hard

You dive 21 feet from the surface of a lake in 7 seconds. a. what is the mean change. b. you continue diving what is your position relative to the surface after 5 more seconds

A rectangle has a length of x + 4 centimeters and a width of x centimeters. The perimeter of the rectangle is 28 centimeters. What is the value of x?

A school concert has students tickets for $7 and nonstudents tickets for $12. If the school made $1973 selling 214 tickets? How many student tickets were sold? How many nonstudent tickets were sold?

Simplify 5 (a - b) + 6 (a + b) - 7 (a - 2b) O 4a - 136 O 4a + 15b O 19 ab

If 15 is 5% of p, what is 12% of p?

Which digit can replace the? to make this number sentence true 736,554 < 7?6,573 < 736,589 only one answer

2. A pool company is trying out several new drains. Drain A empties a pool at a rate of 2 gal/min. Drain B empties a pool at a rate of 5 gal/min. One pool has 108 gal of water in it.

2 divided by 773 Write a mixed numeral for the Answer

Solving - 4 (x+1) - 3=-3 (x-4) A-19 B19 C2 D0

Choose the expression that represents the indicated composition. f (x) = 10x g (x) = x - 3 (f º g) (x) = ? 10x - 30 10x - 3 10x2 - 30 10x2 - 30x