Which expression is equivalent to 4.2a−2(0.4a−1.3) answer choices
3.4a+2.6
3.4a−1.3
3.4a+1.3
3.4a−2.6

please give an explanation!

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?

What ia the sum if the first 7 terms of the geometric series