Carlo has 35 stamps. some are valued at 2 cents, others at 5 cents and the remainder at 10 cents. he has 3 times as many 5 cent stamps as he has 2 cent stamps and the total value of all stamps is $1.89. how many of each stamp does he have?

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.

Find the measure of angle b in the following triangle