Evaluate the following: `((-2)^3xx(-2)^7)/(3xx4^6)`

Evaluate the following: (3/7)^(-5)xx(7/6)^(-4)

Simplify : ((-2)^3 xx (-2)^7)/(3 xx (4)^6)

Evaluate each of the following products: (-1)xx(-2)xx(-3)xx(-4)xx(-5) (-3) xx(-6)xx(-9)xx(-12)

Find the value of * in the following 1(2)/(3)-:(2)/(7)xx(.)/(7)=1(1)/(4)xx(2)/(3)-:(1)/(6)(a)0.006 (b) (1)/(6)(c)0.6(d)6

Calculate the following a. (6.7 xx 10^(5)) xx (4.6 xx 10^(4)) b. (7.6 xx 10^(7)) xx (3.8 xx 10^(-4)) c. (6.8 xx 10^(-3)) xx (5.2 xx 10^(-4)) d. (6.7 xx 10^(5)) / (4.6 xx 10^(4)) e. (7.6 xx 10^(7)) / (3.8 xx 10^(-4)) f. (6.8 xx 10^(-3)) / (3.8 xx 10^(-4)) g. 7.65 xx 10^(2) + 2.72 xx 10^(3) h. 7.87 xx 10^(-4) - 2.61 xx 10^(-5)

Simplify the following (a) (4)^2xx(-6)^3 (c) (-6)^2/4^3xx5^3xx2^5

Compute the following (i) 2xx6!-3xx5! (ii) 3xx4!+7xx4!

Find the value of x in the following: 1 2/3-:2/7xx x/7=1 1/4xx2/3-:1/6