Mathematics

Data [234, 351, 468, 585]. Average?

Data [36, 54, 72, 90]. First two total?

Data [420, 630, 840, 1050]. First two total?

Data [100, 150, 200, 250]. First two total?

Data [464, 696, 928, 1160]. Minimum?

Data [264, 396, 528, 660]. Minimum?

Data [170, 255, 340, 425]. Average?

Data [82, 123, 164, 205]. Average?

Rectangle 56×109. Area?

Triangle angles 117°, 57°. Third?

Triangle angles 57°, 94°. Third?

Rectangle 72×141. Area?

Triangle angles 89°, 85°. Third?

Rectangle 152×301. Area?

Rectangle 16×29. Area?

Square side 29. Perimeter?

Triangle angles 153°, 21°. Third?

Rectangle 124×245. Area?

Rectangle 28×53. Area?

Square side 145. Perimeter?

Circle radius 43. Circumference? (π=22/7)

Rectangle 96×189. Area?

Triangle angles 53°, 86°. Third?

Square side 157. Perimeter?

Square side 9. Perimeter?