Write a whole number that rounds to 2000 if we are rounding to the nearest thousand

Need on this one asap im almost done with this subject

Which expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above

Which values of a, b, and e represent the answer in simplest form? a = 1.0=3,0 = 2 a = 1.6= 40, c = 24 @= 1.b= 16, c= 24 @= 1,6-2,c=3