A chessboard is made of small squares of equal side lengths. If the perimeter of the chessboard is 20 cm, what could be the value of (a+b)? a. 10 cm
b. 6 cm
c. 8 cm
d. 11 cm
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The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

The sum of two numbers is 12 and their difference is 18 what are the two numbers