Help me please this is due please help

18

Step-by-step explanation:

Divide the total weight of dough by the amount required for 1 pizza

20 ÷ 1 ( change mixed numbers to improper fractions )

= ÷

• leave first fraction , change ÷ to × , turn second fraction ' upside down '

= × ( cancel 81 and 9 by 9 )

= × 8 ( cancel 4 and 8 by 4 )

= 9 × 2

= 18 pizza's

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .