Answer:
Step-by-step explanation:
D=√((-5+2)²+(-4+1)²)=√(9+9)=3√2≈4.24
Answer:
4g+4.25
25
Step-by-step explanation:
He doesn't have more than $25
You may go the super easy way and choose 1 as the whole number and 0.28 as the decimal number. Then you'd obviously have 
Otherwise, to be a bit more creative, you can observe that

And since 1/25=0.04, you can also choose 7 as the integer, and 0.04 as the decimal to get

1) x² + y² = 64 is the EQUAION of a cercle with a radius R = √64 =8
2) The cross section is a triangle with H = BASE.
Since R = 8 that means the Base B= 16 and also the height H =16
This solid is then a regular cone and its Volume value is
V = πR².H
V π(8)².(16) = 2014π units³ or ≈ 3217 units³