Step-by-step explanation:
18.
4(c+5)-f⁴
4(-1+5)-4⁴
4(4)-4⁴
16-256
-240
19.
-3[(w-6)²+x]²
-3[(5-6)²+6]²
-3[-1²+6]²
-3[1+6]²
-3[7]²
-3(49)
-147
20.
3.5[h³-(3j/6)²]
3.5[3³-(3*-4/6)²]
3.5[27-(-12/6)²]
3.5[27-(-2)²]
3.5[27-4]
3.5[23]
80.5
21.
x[y²-(55-y^5)÷3]
-6[6²-(55-6^5)÷3]
-6[36-(55-7776)÷3]
-6[36+7721÷3]
-6[7757÷3]
-6[2585.66]
-15513.96
Answer:
Blac cack
u put the gs with each other by flipping the one that was changed
3.6g-1.6g=8-2
2g=6
g=6/2
g=3
there is 8 parts total
6/8 red 2/8 yellow
6/8 = 0.75
0.75 X 100 = 75%
