The cost would be $31.50 because in this case 30% is 13.5.
Answer:
Formation of Elements: Protons + Neutrons combine to form the nucleus of an atom (basic unit of matter), electrons (- charge) orbit nucleus attracted to protons (+ charge)
Answer:
hello :
the graph passes by ( -4; 7/128) : f(-4) = 7/128
a/ (-4)^4 = 7/128
a / 256 = 7/128
a/2 = 7
a = 14
Answer:

Step-by-step explanation:
Pythagorean Theorem:

where a and b = legs and c = hypotenuse
we are given a leg and the hypotenuse so we plug in what we have into the formula
now we solve for b
step 1 subtract 20^2 from each side

finally we want to get rid of the exponent on the b
to do so we take the square root of each side

we're left with b = 21
Note: They Pythagorean theorem only works with right triangles
I’m pretty Sure that the answer would be 20 because 25 to the power of 2 would be 50 and 15 to the power of 2 is 30 and 50 - 30 =20