Answer:
number 4 i gess
Step-by-step explanation:
Answer:
It would be 7cm
Step-by-step explanation:
please find step by step explanation on the picture
Expand the right side:


Notice that 98 = 2 * 7 * 7, so we have
and
.
Then

and

Answer:
y =8
Step-by-step explanation:
1/2y+2/5=4 2/5
Subtract 2/5 from each side
1/2y+2/5-2/5=4 2/5-2/5
1/2 y = 4
Multiply each side by 2
1/2y *2 = 4*2
y = 8
Your absolute value cannot be negative.