find positive integers x,y,z such that 28x+30y+31z=365

use exact calculation (no calculators or decimals allowed) to decide which is larger:

(a) 28% of 75 or 75% of 28? (b) 76% of 27 or 57% of 36?

the 1st July is a beautiful date, since the shortened form of theyear numberis equal to theproductof theday numberand themonth number.1.7.70. how many years in the 21st century havenobeautiful dates at all?

there are more but some have diagrams so i cannot type them out,,

thanks u soo much!! xxxx