9.What is the value of `5/7`?

What is the value of 5^(-5) ?

What is the value of ((5)/(7) of (19)/(6))/((19)/(7)/((7)/(4)))

Let a and b be two positive real numbers such that at asqrt(a) + bsqrt(b) = 32 and asqrt(b) + bsqrt(a) = 31 . What is the value of (5(a+b))/7 ?

If 9 + 7 = 58, 3 + 11 = 124 What is the value of 13 + 5 ?

7 * 1 = 64, 3 * 9 = 144 What is the value of 5 * 6 ?

If the mode of 2.5, 2.7, 2.8, 2.7, 2.5, x , 2.8, 2.7, 2.8 is 2.8, then what is the value of x?

What is the value of (7.5xx7.5+37.5+2.5xx2.5)?