1. The problem asks to write algebraic expressions for given verbal phrases. 2. For each phrase, we translate the words into algebraic terms: 3. Sum means addition, product means multiplication, times means multiplication, increase means addition, take away means subtraction. 4. Now, write each expression: ① Sum of 9 and x: $$9 + x$$ ② The product of 10 and y: $$10 \times y = 10y$$ ③ 3 times t minus 2: $$3t - 2$$ ④ Increase y by n: $$y + n$$ ⑤ Take away 2 from r: $$r - 2$$ 5. These expressions represent the algebraic form of the given phrases.