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:
12
Step-by-step explanation:
30+(4x+2)=8+6x
30+4x+2=8+6x
32+4x=8+6x
32=8+6x-4x
32=8+2x
2x=32-8
2x=24
x=24/2
x=12
Answer:
FG = 18
Step-by-step explanation:
24
---E--------------F--------------------------------G
1/3FG
4/3FG = 24
FG= 24×3/4
FG= 6×3
FG= 18
Hope this helps!!!
Answer:
7n
Step-by-step explanation:
n+n+n+n+n+n+n
Count the number of n's
7n
