If a = james's present age, write an expression for his age seven years from now.

Step-by-step explanation:

Given,

James's present age be = A

So,

After seven years from now will be +7

Therefore,

James age, seven years after his present age is,

= (A) + (7)

= A + 7

Hence, the required expression is: A + 7 (Ans)

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500