Im sorry wish i could help but the equation is a little confusing give me a few moments and i will figure out the answer okay?
N + d = 21
0.5n + 0.10d = 1.35
5n + 10d = 135
d = 21-n
5n + 210 - 10n = 135
-5n = -75
n = 15
d = 6
Answer:259
Step-by-step explanation:
Its summation of 6^i-1 for values of I = 1,2,3 and 4
= 6^0 + 6^1 +6^2 +6^3
=259
Answer:148
Step-by-step explanation:1% = 2 x 26 = 52 - 200 = 148