Answer:
1500 ft
Step-by-step explanation:
1 yd=3 ft
500 yd*3 ft/yd=1500 ft
Multiply 500 yds by the conversion factor derived from 1 yd = 3 ft:
500 yd 3 ft
----------- * ----------- = 1500 ft
1 1 yd
21 is answer
Find the value of expression the a3−3a2+5a−7 by substituting a=3.
34
substitute
3(8)-2(-2)+6
dsitribute
24+4+6
add