Answer:
the base is 10 and the height is 6.4
* means multiply, sqrt=radical
expand
-10+sqrt2*8i-sqrt2*15+24i
group
(-10-sqrt2*15)+(sqrt2*8+24)i
not exactly sure though
x = 1 because -7(3x + 4) must be -49 so 3x + 4 must me 7 so x = 1
She can make two cakes and 3 trays of cookies
35+5(4-s)=2550
35+20-5s=2550
55-5s=2550
-55 -55
-5s = 2495
s = - 499
-499 + a = 4
+499 +499
a = 503
