PLEASE HELP ME, IMA LOW LIFE WHO DOESNT KNOW MAF

B for the first one. A is for the second one. A for the third one.

Step-by-step explanation:

A is for the second one because 4* 10^4=40,000 while 4*10^5= 400,000 and a marathon is 42,000 and 40,000 is closer to 40,000. Therefore, A.

A for the third one because 1*10^0=1 while 1*10^1=10 and a stride is 1.44 and 1 is closer to 1.44 than 10. Therefore, A.

B for the first one because if a stride is 1m and the marathon is 4*10^4 which is 40,000 then. 40,000/1 = 40,000= 4*10^4

I hope this helps!

P.S.- Just an FYI in case you don't know. An* means to multiply and a ^ means to the power.

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.