



 
Hi Maurice, Sally's sunflower is 4 cm high and grows 1 cm each day. Hence after 1 day is will be $4 + 1$ cm high. After 2 days it will be $4 = 2 \times 1$ cm high and after 3 days $4 + 3 \times 1$ cm high. How tall will it be after $t$ days? How tall will Sam's sunflower be after $t$ days?Set the height of Sam's sunflower after $t$ days to twice the height of Sally's sunflower after $t$ days and solve for $t.$ Penny  


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