Seven decreased by a number
7 - x
10 less than y.
y-10
Translate to mathematical expression: 10 less than m.
m-10
The cube of x.
x^3
The ratio of 3 to z.
3/z
8 is increased by k.
8 + k
Translate to Mathematical expression: p is the same as q.
p=q
Thrice a number
3x
5 more than x.
x+5
Twice as much as x
2x