Can you please help me write out the equation for these? (not solve)

1. The number of trees planted by the Alpine Nursery in April was three more than twice the number of trees planted by the nursery in March. If 73 trees were planted in April, how many trees did the nursery plant in march?

2. A long distance phone company's monthly charges are 4.99 plus 10 cents per minute. If the monthly bill was $16.99, find out how many minutes were used that month.

3. Mike bought 8 pairs of socks and a T-shirt. his bill was $31.50. Determine the price for each pair of socks if the cost of the T-shirt was 7.50

1. X = The # of trees planted in March.

2x + 3=The # of trees planted in April.

Eq: 2x + 3 = 73.

2. X = The # of minutes used.
C = the total charges.

Eq: C = 0.1x + 4.99.

3. X = Cost of each pair of socks.
C = Total cost.

Eq: C = 8x + 7.50.

1. Let's define the number of trees planted by the nursery in March as "x". According to the information given, the number of trees planted in April was three more than twice the number planted in March, which can be represented as 2x + 3.

Therefore, the equation can be written as:

2x + 3 = 73

2. Let's define the number of minutes used that month as "m". According to the information given, the monthly charges include a fixed fee of $4.99 and an additional charge of 10 cents per minute, which can be represented as 0.10m.

Therefore, the equation can be written as:

0.10m + 4.99 = 16.99

3. Let's define the price for each pair of socks as "s". According to the information given, Mike bought 8 pairs of socks and a T-shirt, with a total bill of $31.50. The cost of the T-shirt is given as $7.50.

Therefore, the equation can be written as:

8s + 7.50 = 31.50