Mode is singing cause it shows up 7 times

**Answer:**

d=-7

**Step-by-step explanation:**

Hope this helps! Pls give brainliest!

**Answer:**

C

**Step-by-step explanation:**

We want to find the total, which is 15. This crosses out A and B.

Also there are 3 x that makes a total of 15, (3x is x copied 3 times, not 3 + x), this crosses out D.

The only option left is C.

Two trapezoid are similar

so it has some scale factor

look longer base of a big trap is 8 mi,and longer base of shorter trap is 4mi.

so that is half of big trapezoid.

so little trapezoid base should be 1 as big trap's shorter base is 2mi<span />