Plz hlp translate the following phrase to an expression: the difference between twenty and twice a number.

20 + 2n
20 - n
2n - 20
20 - 2n

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

On a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give your answer to 1 decimal place

Adeposit of 5500 at 6% for 3 years equals