Hey guys would you solve this asap?

5x^4+6d4212356[3p-4h]

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?