Answer:
$23.52
Step-by-step explanation:
So first you would have to find how much each one would be if you were buying one individual book. For that you would do 31.36/4 to get $7.84. Then since you found that for only 1 book, you would need to multiply that by 3 to get $23.52
Answer:
2.66216x10^20
Step-by-step explanation:
6 calandre years hope y get it correct and mark me brainliest plsssss
Hint: substitute 2^x by say 't': t = 2^x, then you'll have an inequality with a second order polynomial (2/t-4*t<7--> ...). In the end something like t^2 + a*t+b > 0, for some values of a and b, find the roots and get the intervals where it is satisfied.
Step-by-step explanation:
2A + B = 17
3A - B = 18
5A = 35, A = 7, B = 3
Hence the numbers are 7 and 3.
