Write $33:10$33:10 as a single decimal.

Express $31.8$31.8 $:$: $3180$3180 as a single decimal.

Write $90:2$90:2 as a single decimal.

Express $85.4:170.8$85.4:170.8 as a single decimal

Solve problems requiring the expression of percents, fractions, and decimals in their equivalent forms