Answer:
1+78=133
1=133-78
1=55
(1/3)⁷
Step-by-step explanation:
negative exponents work like this:
x⁻²=(1/x)²
Apply this theory to this equation:
3⁻⁷=
AC=BD
64 units=10x+24
64-24=10x
40=10x
X=40 divided by 10= 4
hope it helps:)))
at 
. (See definition of derivative)