Need answer asap what decimal is represented by this expanded form? 2×10,000+7×1,000+4×100+9×1+3×1/10+8 ×1/1,000

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?