Answer:
A is 27 i think and B is 15 i think
Step-by-step explanation:
₇P₅ is a permutation. you can find this setting in the statistics menu of your scientific calculator (i think).
If you don't have a scientific calculator, you can use the following formula:
nPr = 
₇P₅ = 
= 
= 
= 7 * 6 * 5 * 4 * 3
= 2520
Answer: C
<span>Since charged particles cannot move across the membrane easily due to them being hydrophobic, they require a transport protein that expends energy in the form of ATP. ATP attaches onto the transport protein which changes the shape of the protein allowing ions to flow in, and it leaves a phosphate group turning into ADP.When the molecule has crossed the membrane, the phosphate group is detached from the protein.</span>
Answer:
b (1)= 4
b (n)= b (n-1)+ 18
Step-by-step explanation:
9/10 + 1/6 = 27/30 + 5/30 = 32/30 = 1 2/30 reduces to 1 1/15
